Journal of Stomatology Oral and Maxillofacial Surgery最新文献

{"title":"Optimizing the Anatomical Location and Procedural Parameters for Miniscrew Placement in the Infrazygomatic Region- A CBCT Study.","authors":"Tuğba Haliloğlu Özkan, Büşra Gül Yılmaz, Sinan Altun","doi":"10.1016/j.jormas.2025.102390","DOIUrl":"https://doi.org/10.1016/j.jormas.2025.102390","url":null,"abstract":"<p><p>This study evaluates the integration of anatomical and procedural guidelines to develop realistic protocols for successful miniscrew insertion in the infrazygomatic crest (IZC) region, using CBCT measurements. A total of 720 measurements were collected from 30 adult patients, focusing on the upper first molar (U6) region. A grid system was created in the sagittal plane, including 12 reference points around the U6, with horizontal and vertical measurement points. A 12-mm virtual IZC miniscrew was inserted at each reference point, with the angle adjusted for 1 mm of sinus penetration and 5 mm of projection beyond the bone surface. Insertion success was defined as maintaining a minimum 0.5 mm safe distance from the roots, classified as system-compatible (SC), while root contact (RC), failure to achieve sinus penetration (SF), or sinus perforation (SP) exceeding 1 mm were classified as failures. No significant differences were found among the reference regions (p > 0.05). The 15 mm-U6MB region, with an insertion angle of 41.22°±8.67° apically and 12.36°±2.48° mesially, had the highest success rate of 55.0 %. The 15 mm-U6DB region, while aligning with the guidelines, had a higher incidence of root proximity (56.9 %). At the 17 mm region, sinus perforations exceeded 1 mm in 96.8 % of cases. The recommended placement height of 15 mm above the POP, with a 40° apical and 10° mesial angle at U6MB, offers the best balance of stability and safety, in line with literature guidelines. This study provides clinicians with evidence for effective miniscrew placement, ensuring stability while avoiding critical anatomical structures.</p>","PeriodicalId":56038,"journal":{"name":"Journal of Stomatology Oral and Maxillofacial Surgery","volume":" ","pages":"102390"},"PeriodicalIF":2.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144027372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cystic teratoma of the head and neck region in the neonate - description of three cases.","authors":"Guilherme Trento, Christian Davila, Johann Ludwig Nafz, Mona Jaber, Susanne Jung, Jacqueline Lisson, Miriam Schulte, Johannes Kleinheinz","doi":"10.1016/j.jormas.2025.102381","DOIUrl":"https://doi.org/10.1016/j.jormas.2025.102381","url":null,"abstract":"<p><p>Congenital head and neck malformations frequently pose a significant diagnostic challenge for physicians. Less than 10% of congenital teratomas occur in the head and neck region. The identification of these lesions is often a serendipitous finding on prenatal ultrasound. Surgical intervention may be required immediately post-birth depending on the location and dimensions of the identified teratoma. The objectives of the current study are to present three cases of mature teratoma, diagnosed post-birth, in newborn male patients and to bring attention to the difficulties in the treatment of such a condition. All cases were diagnosed as G0, according to the Gonzalez-Crussi grading system. Following the protocols of the MAKEI study group, the treatment and follow-up plans were established. Based on the results so far achieved, and the experience acquired from these reported cases, it can be suggested that teratomas, primarily located in the nasopharynx region, have surgical resection as the first line of treatment. Additionally, long-term follow-ups should be performed periodically through different types of exams, such as imaging and laboratory exams.</p>","PeriodicalId":56038,"journal":{"name":"Journal of Stomatology Oral and Maxillofacial Surgery","volume":" ","pages":"102381"},"PeriodicalIF":2.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144043232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anterior mandibular distraction osteogenesis: a retrospective study of condylar stability in the treatment of mandibular retrognathia secondary to idiopathic condylar resorption.","authors":"Mengdie Chen, Yangyang Lin, Jiangfei Chen, Qi Xu, Yuanfu Hou, Zhiling Zhang, Bailing Yuan, Min Hou","doi":"10.1016/j.jormas.2025.102391","DOIUrl":"10.1016/j.jormas.2025.102391","url":null,"abstract":"<p><strong>Introduction: </strong>The etiology of idiopathic condylar resorption (ICR) is not conclusively established, and its treatment is primarily focused on correcting secondary maxillofacial deformities. Condylar resorption is a common complication of the treatment of ICR. As one treatment for mandibular retrognathia secondary to idiopathic condylar resorption (MRSICR), distraction osteogenesis (DO) can improve the facial profile and the occlusion. However, it has not been accurately determined whether DO could cause damage to the condyle. In this experiment, one innovative therapeutic modality was used to treat MRSICR by changing the traction device from the traditional posterior position of the mandibular body to the premolar region to explore a treatment method with less impact on the temporomandibular joint area (TMJ).</p><p><strong>Materials and methods: </strong>A total of 11 patients (22 condyles) were included. To simulate the direction of traction, preoperative digital design was performed. Patients' radiological data were collected preoperatively (T0), six months following surgery (T1), a year following surgery (T2), and three years following surgery (T3). The changes in the distance of the TMJ space and in the surface area, volume, condylar plane angle, and condylar height at different intervals were assessed.</p><p><strong>Results: </strong>Surface area, volume, height and the distances of anterior and posterior joint spaces of the condyle did not alter significantly after surgery (P > 0.05). Significant differences were found in the postoperative changes in supra-joint space and the condylar displacement in cross-section (P < 0.05).</p><p><strong>Discussion: </strong>Our study suggests that as a treatment for MRSICR, the DO of the anterior mandible has shown some advantages in avoiding postoperative complications as condylar resorption. Larger sample sizes are required for future research to validate the viability of this technique.</p>","PeriodicalId":56038,"journal":{"name":"Journal of Stomatology Oral and Maxillofacial Surgery","volume":" ","pages":"102391"},"PeriodicalIF":2.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144065314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of pediatric mandibular fracture management in France.","authors":"Thomas Didier, Anne Morice, Boris Laure, Aline Joly","doi":"10.1016/j.jormas.2025.102389","DOIUrl":"https://doi.org/10.1016/j.jormas.2025.102389","url":null,"abstract":"<p><p>Mandibular fractures in children present management challenges due to pediatric-specific factors such as mandibular growth and the presence of dental germs. There are few surgeons specifically trained to treat these fractures, and there are no national or international guidelines. Management depends on several factors, including the child's age and the location of the fracture. Treatment options include functional treatment, closed reduction with or without immobilization, and surgery. The aim of this study was to assess the current management strategies for pediatric mandibular fractures in France, based on a national survey. A questionnaire based on two clinical cases of children of different ages, presenting mandibular fractures in different locations, was sent to the referring pediatric surgeon of 25 centers in France that manage pediatric maxillofacial trauma. The questions focused on the choice of treatment, postoperative instructions, and follow-up. The data were analyzed descriptively. Off the 25 centers, all responded to the questionnaire. For the first patient, 92 % of the surgeons hospitalized the child. Among them, 76 % opted for open reduction and internal fixation (ORIF) for the parasymphyseal fracture, and 72 % adopted the same approach for the mandibular body fracture. In most cases, the fixation material was left in place for at least three months. For the second patient, 88 % of the surgeons also hospitalized the child. For condylar fractures, 84 % chose functional treatment. 56 % of practitioners opted for ORIF for the mandibular body fracture. Regarding the use of resorbable plates, only 1 out of 25 centers used this type of material. Concerning the specific training of surgeons, the study shows that among the 25 centers: 52 % reported having surgeons with specific pediatric training. 48 % of the centers had access to a dental prosthetist capable of fabricating retention splints. This study is the first on this subject in France. It highlights significant variability in the management of pediatric mandibular fractures in France and underscore the need for standardized treatment protocols. Future studies should focus on developing standardized guidelines and evaluated long-term outcome to improve both surgical and conservative approaches.</p>","PeriodicalId":56038,"journal":{"name":"Journal of Stomatology Oral and Maxillofacial Surgery","volume":" ","pages":"102389"},"PeriodicalIF":2.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144013781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Survey on complications of Orthognathic surgery among oral and maxillofacial surgeons.","authors":"Adalet Çelebi, Dilan Aykanat, Ayşe Özcan Küçük, Fethi Atil","doi":"10.1016/j.jormas.2025.102387","DOIUrl":"https://doi.org/10.1016/j.jormas.2025.102387","url":null,"abstract":"<p><p>The purpose of this study is to investigate the rates of complications encountered by oral and maxillofacial surgeons who actively perform orthognathic surgeries in Türkiye intraoperative and postoperative periods. Sixty oral and maxillofacial surgeons, 39 male and 21 female, who actively performed orthognathic surgeries in Türkiye were included in this cross-sectional study which was conducted with a survey. A 19-item survey form was created and sent to the participants via the Google Forms platform. The survey included questions about complications in sagittal split ramus osteotomy, vertical ramus osteotomy, subapical osteotomy, genioplasty, LeFort 1 osteotomy, and bimaxillary surgery. In the interpretations of the results of the statistical analyses, p < 0.05 was accepted as the threshold for statistical significance. It was found that 46.7 % of the participants had 1-5 years of orthognathic surgery experience. The most frequently experienced complication in orthognathic surgeries of the mandible was nerve damage. Nerve damage was also the most frequently experienced complication in sagittal split ramus osteotomy and bimaxillary surgery procedures, observed at rates of 82.5 % and 76.8 %, respectively. Condylar resorption, which is complication rarely encountered in the postoperative period, was encountered by 14 participants. The rate of participants with LeFort 1 osteotomy experience was 98.3 %, and the most frequently seen complication in this type of surgery was bleeding at a rate of 69 %. According to the results of this study, oral and maxillofacial surgeons in Türkiye encountered similar complications in orthognathic surgeries. Despite cases of severe complications during and after surgeries of the maxilla and mandible, the low number of these complications makes orthognathic surgeries safe procedures.</p>","PeriodicalId":56038,"journal":{"name":"Journal of Stomatology Oral and Maxillofacial Surgery","volume":" ","pages":"102387"},"PeriodicalIF":2.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144011328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Use of bisphosphonates in the treatment of diffuse sclerosing osteomyelitis: A case report with systematic review of the literature.","authors":"Rayssa Nunes Villafort, Luiza Vale Coelho, Gustavo Henrique Martins, Guilherme Veloso Ramos, Marcio Bruno Figueiredo Amaral","doi":"10.1016/j.jormas.2025.102386","DOIUrl":"https://doi.org/10.1016/j.jormas.2025.102386","url":null,"abstract":"<p><p>Diffuse sclerosing osteomyelitis is an uncommon and poorly understood chronic inflammatory disease, for which many etiological theories and treatment modalities have been suggested. Recurrent swelling and pain in the lower jaw are typical symptoms, often accompanied by trismus. The management of diffuse sclerosing osteomyelitis is a challenging and often long term with several drug therapies being reported in the literature, including anti-resorptive therapies. This study aimed to investigate the effects of bisphosphonates therapy in diffuse sclerosing osteomyelitis patients and report an atypical case in a young patient. A systematic review of the literature was performed including 130 patients with diffuse sclerosing osteomyelitis treated with bisphosphonates. Complete resolution of the clinical symptoms, with regression of pain and swelling were reported in 105 (80,76 %) patients. Pamidronate IV was the most frequent medication applied with stable and satisfactory long-term results. In this study, the patient was treated with intravenous administration of 45 mg of pamidronate disodium, once a day, for three continues days. The follow-up was uneventful with complete regression of the clinical symptoms. Bisphosphonates seem to be a good option in the treatment of diffuse sclerosing osteomyelitis in the jaw, especially pamidronate IV.</p>","PeriodicalId":56038,"journal":{"name":"Journal of Stomatology Oral and Maxillofacial Surgery","volume":" ","pages":"102386"},"PeriodicalIF":2.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144053594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparative analysis of craniofacial bone density based on embryonic origin and ossification patterns.","authors":"Seok Woo Hong, Kyung Jae Yoon, Jeong-Hyun Kang","doi":"10.1016/j.jormas.2025.102388","DOIUrl":"https://doi.org/10.1016/j.jormas.2025.102388","url":null,"abstract":"<p><strong>Objective: </strong>Bones develop from various embryonic origins and are formed through either endochondral or intramembranous ossification. This study aimed to explore how bone density varies across bones with different embryonic origins and ossification processes.</p><p><strong>Materials and methods: </strong>A total of 43 participants (12 males; mean age 68.3 ± 9.9 years) with a history of falls and suspected facial and wrist fractures were included. Participants were subsequently divided into three groups based on levels of osteoporosis based on the T-score of the areal bone density (aBMD) at the femoral neck. aBMD was measured using dual-energy x-ray absorptiometry (DEXA) of the total hip, femoral neck, and lumbar spine. Bone densities of the distal radius, hyoid, and craniofacial bones, including mandible, maxilla, frontal, parietal, zygomatic, and temporal bones were assessed using 3D reconstructed computed tomography images.</p><p><strong>Results: </strong>The average Hounsfield Unit of the reconstructed distal radius model varies significantly across osteoporosis levels. However, no significant differences were found in the craniofacial bones or hyoid bone models. Significant correlations were identified between bone densities of the axial and appendicular skeletons. In contrast, the craniofacial bones exhibited strong internal correlations but minimal associations with those of axial or appendicular bones, revealing distinct bone density patterns influenced by embryonic origin and ossification processes.</p><p><strong>Conclusion: </strong>Different embryonic origins and ossification processes give rise to distinct bone density patterns. These results underscore the importance of careful considerations beyond DEXA outcomes when predicting fracture risk or planning the procedures involving bone preparation, particularly in craniofacial regions.</p>","PeriodicalId":56038,"journal":{"name":"Journal of Stomatology Oral and Maxillofacial Surgery","volume":" ","pages":"102388"},"PeriodicalIF":2.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143998446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pseudoaneurysm of the facial artery following mandibular bilateral sagittal split osteotomy: A case report.","authors":"Constantijn Bogaert, Uri Singfer, Lisa De Kock, Peter Vanlangenhove, Renaat Coopman","doi":"10.1016/j.jormas.2025.102385","DOIUrl":"https://doi.org/10.1016/j.jormas.2025.102385","url":null,"abstract":"<p><p>This article presents a case involving a 16-year-old female patient in whom a pseudoaneurysm of a facial artery branch was diagnosed two weeks after initial orthognathic surgery. The patient presented with a sensation of pressure, accompanied by pulsations synchronised with her heartbeat, located on the right side of the mandible. Ultrasound imaging, followed by CT angiography, confirmed the diagnosis of a pseudoaneurysm within the parotid region. Endovascular embolization effectively stopped blood flow to the pseudoaneurysm, leading to rapid recovery without any lasting complications. A pseudoaneurysm is a rare complication following orthognathic surgery. This complication, as a result of anatomical variation, can have serious consequences if not recognised and treated in time.</p>","PeriodicalId":56038,"journal":{"name":"Journal of Stomatology Oral and Maxillofacial Surgery","volume":" ","pages":"102385"},"PeriodicalIF":2.2,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144063497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biomechanical comparison of magnesium bioresorbable and titanium lag screws for mandibular symphysis fracture fixation: A finite element analysis.","authors":"Amanurrahman Zubair Ahemad, Vidya Rattan, Satnam Singh Jolly, Parveen Kalra, Shagun Sharma","doi":"10.1016/j.jormas.2025.102383","DOIUrl":"https://doi.org/10.1016/j.jormas.2025.102383","url":null,"abstract":"<p><strong>Objective: </strong>This study evaluates the biomechanical performance of magnesium bioresorbable lag screws compared to conventional titanium screws for mandibular symphysis fracture fixation using finite element analysis (FEA).</p><p><strong>Material & methods: </strong>A 3D mandible model was created using MIMICS software from high-resolution CT data. Fracture lines were simulated, and Mg and titanium screws were designed in SolidWorks and virtually implanted. Meshing was performed using 3-matic software to represent geometry accurately. FEA was conducted using ABAQUS under masticatory forces of 150 N (incisor load) and 550 N (molar load). Stress distribution, displacement, and fracture stability were assessed, with material properties derived from established data.</p><p><strong>Results: </strong>Mg screws exhibited lower von Mises stress (VMS) compared to titanium screws under both loading conditions. For incisor loading, Mg screws recorded 44.71 MPa compared to 56.94 MPa for titanium, with the lowest stress in Mg screws (25.73 MPa). Similarly, under molar loading, Mg screws showed reduced stress (48.35 MPa vs. 61.53 MPa for titanium). Mandibular stress (22.158-23.14 MPa), screw deformation (0.230-0.255 mm), and fracture displacement (0.278-0.310 mm) were comparable across materials.</p><p><strong>Discussion: </strong>Mg screws demonstrated comparable biomechanical stability to titanium screws while significantly reducing stress concentrations, effectively transmitting loads within bone healing limits. Their bioresorbable nature eliminates the need for secondary surgeries, offering a promising alternative for mandibular fracture fixation and enhancing clinical outcomes.</p>","PeriodicalId":56038,"journal":{"name":"Journal of Stomatology Oral and Maxillofacial Surgery","volume":" ","pages":"102383"},"PeriodicalIF":2.2,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144044898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel approach for reconstruction of anterior cheek defects: Series connection of cheek mucosal flap and buccal fat pad.","authors":"Shi-Long Zhang, Liang Mao, Lei Chen, Jun Jia, Zi-Li Yu","doi":"10.1016/j.jormas.2025.102380","DOIUrl":"https://doi.org/10.1016/j.jormas.2025.102380","url":null,"abstract":"<p><strong>Background: </strong>The buccal mucosa is a frequent site of precancerous lesions, and surgical excision often leaves a mucosal defect. owing to the inherent limited length of the buccal fat pad, its efficacy in covering mucosal defects is confined. In cases where the defect is anterior in the cheek, reliance solely on buccal fat pad is insufficient for complete coverage of the affected area. The currently used reconstructive approach for cheek mucosal defects, biological membrane coverage, is associated with a risk of severe mouth opening restriction due to scar contracture, adversely affecting the patient's quality of life. This study introduces a novel technique combining a cheek mucosal flap with the buccal fat pad to address anterior cheek defects. The aim of this study is to evaluate the efficacy of a combined cheek mucosal flap and buccal fat pad technique for reconstructing anterior cheek mucosal defects.</p><p><strong>Methods: </strong>A retrospective analysis of five patients who underwent this surgical procedure at Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University was conducted. The technique involved creating a cheek mucosal flap and advancing the buccal fat pad to cover the defect. Postoperative outcomes, including mouth opening and scar formation, were assessed.</p><p><strong>Results: </strong>All patients achieved satisfactory healing with mouth openings exceeding 3.0 cm. No significant complications were observed, and the surgical sites were fully mucosalized within three months.</p><p><strong>Conclusion: </strong>The combined cheek mucosal flap and buccal fat pad technique is a viable solution for reconstructing anterior cheek defects, offering improved functional and aesthetic outcomes with minimal complications. This surgical methodology boasts considerable practicality and potential for widespread dissemination.</p>","PeriodicalId":56038,"journal":{"name":"Journal of Stomatology Oral and Maxillofacial Surgery","volume":" ","pages":"102380"},"PeriodicalIF":2.2,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144053570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}