Chinese journal of otorhinolaryngology head and neck surgery最新文献

{"title":"[Application of folded flap in laryngeal and hypopharyngeal function reconstructions after surgery of piriform sinus cancer].","authors":"Y N Pang, C B Xu, C S Jin, X Zhao","doi":"10.3760/cma.j.cn115330-20240122-00039","DOIUrl":"https://doi.org/10.3760/cma.j.cn115330-20240122-00039","url":null,"abstract":"<p><p><b>Objective:</b> To investigate the use of folded flap for repair of laryngeal and hypopharyngeal defect and the clinical efficacies of laryngeal and hypopharyngeal function reconstructions after surgery of piriform sinus cancer. <b>Methods:</b> A retrospective analysis was performed for 10 cases of piriform sinus cancer that were treated in the Second Norman Bethune Hospital of Jilin University from January 2020 to April 2023 and all patients were males, aged 42-68 years. The first choice of treatment for all patients was surgery. After function neck dissection and tracheotomy, partial laryngectomy and hypopharyngectomy were carried out. The folded island flaps were prepared and used for the repairs of laryngeal and hypopharyngeal defects and the reconstructions laryngeal and hypopharyngeal functions. The patients were followed up. <b>Results:</b> The laryngeal and pharyngeal cavities were reconstructed well in 10 patients, and all the flaps survived, with no case of pharyngeal fistula. All patients were able to eat normally through the mouth at 2 weeks after surgery without obvious choking, and 4 patients completed the swallowing function evaluation without aspiration or only a small amount of aspiration. All the 10 patients underwent postoperative radiotherapy. The postoperative follow-up time was 5.4-41.4 months, and there was no case with tumor recurrence or death. Laryngoscopy showed that 8 patients had a spacious new laryngeal orifice, which met the conditions for extubation, of whom 7 patients had their tracheal tubes removed and 1 patient was still under observation, and that 2 patients had a slightly narrowed new laryngeal orifice due to a thick skin flap, with further follow-up observation. All patients retained their phonatory functions after surgery. <b>Conclusion:</b> Folded island flap can be used for the function reconstructions of the larynx and hypopharynx after surgery of pyriform sinus cancer.</p>","PeriodicalId":23987,"journal":{"name":"Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery","volume":"59 8","pages":"844-849"},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Research advancements in tumor regression pattern after new adjuvant therapy].","authors":"J Tian","doi":"10.3760/cma.j.cn115330-20240115-00025","DOIUrl":"10.3760/cma.j.cn115330-20240115-00025","url":null,"abstract":"","PeriodicalId":23987,"journal":{"name":"Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery","volume":"59 8","pages":"884-889"},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Progress of multi-omics technology in precision treatment of chronic rhinosinusitis].","authors":"Y Hao, L M Cui, Y J Yang, Y Zhang, X C Song","doi":"10.3760/cma.j.cn115330-20240131-00073","DOIUrl":"https://doi.org/10.3760/cma.j.cn115330-20240131-00073","url":null,"abstract":"","PeriodicalId":23987,"journal":{"name":"Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery","volume":"59 8","pages":"872-878"},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[The imaging appearances of stapical footplate fistula related to inner ear malformation].","authors":"L S Wang, L L Zhang, N Hu, S F Liu, J Y Li, P Wei, L X Sun, R Z Gong","doi":"10.3760/cma.j.cn115330-20231218-00304","DOIUrl":"https://doi.org/10.3760/cma.j.cn115330-20231218-00304","url":null,"abstract":"<p><p><b>Objective:</b> To summarize the HRCT and MRI appearances of stapical footplate fistula related to inner ear malformation (SFF-Re-IEM). <b>Methods:</b> The HRCT and MRI materials of 48 cases (53 ears) SFF-Re-IEM were retrospectively analyzed. Among them, 25 SFF-Re-IEM ears were confirmed by surgery. Their CT and MRI findings including associated IEM type, internal auditory canal (IAC) malformation, tympanic fluid, its density and signal features, and accompanied labyrinthitis were recorded. <b>Results:</b> Among 48 cases (53 ears) with SFF-Re-IEM, 17 ears with incomplete partition type Ⅰ, accounting for 32.1%, 13 ears with common cavity for 24.5%, 13 ears with cochlear aplasia for 24.5%, 7 ears with cochlear dysplasia Ⅱ for 13.2%, and 3 ears with Mondini for 5.7%,were found respectively. 94.3% of them were associated with a defect or dysplasia in the found of the IAC. They were divided into 4 types according to the intact of the stapical footplate and accompanied CSF otorrhea: 22 ears were diagnosed as the stapical footplate leaking, of them, 2 ears might come from the stapical footplate bony defect, 6 ears were from the stapical footplate hernia. 1 ear belonged to the peristapical footplate leaking. 30 ears with the isolated the stapical footplate hernia were another found. The bony defect in 2 ears with the stapical footplate bony defect were not presented on CT and MRI.The focal bony defect of the affected stapical footplate of 36 ears with the stapical footplate hernia were demonstrated, which presented the hemispherical protruding into the tympana, the soft-tissue density on CT, and CSF-like signal on the MR heaved-T2WI images. Among 22 ears with the stapical footplate leaking, their imaging appearances varied from the different amount of the leaking CSF. Besides the focal bony defects of the affected stapical footplates, there were much more CSF-like density or signal in the ipsilateral tympanic cavity in 17 affected ears connecting with the vestibule through the defect area. In the CSF leaking ears with less CSF leaking in 5 ears, the CSF-like cysts like SFH were shown on the stapical footplate defect area, but their outer edges were irregular, and the CSF-like signal scattering in the tympanic cavity did not connect with the protruding cysts at the stapical area. <b>Conclusion:</b> The variable appearances of the SFF-Re-IEM ears based on the different subtypes are its characteristic HRCT and MRI appearances. This is helpful for the SFF-Re-IEM diagnosing to grasp its imaging features.</p>","PeriodicalId":23987,"journal":{"name":"Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery","volume":"59 8","pages":"803-811"},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Diagnosis of obstructive sleep apnea by a new radar device: a parallel controlled study evaluating agreement with polysomnographic monitoring].","authors":"C Y Li, W Wang, W J Huang, H H Xu, H L Yi, J Guan, G Li, S K Yin","doi":"10.3760/cma.j.cn115330-20231204-00267","DOIUrl":"10.3760/cma.j.cn115330-20231204-00267","url":null,"abstract":"<p><p><b>Objective:</b> This study evaluates the agreement between a new low-load sleep monitoring system, QSA600, based on millimeter-wave radar technology, and polysomnography (PSG) in diagnosing obstructive sleep apnea (OSA). <b>Methods:</b> A total of 155 subjects were recruited for a parallel agreement study in the sleep laboratory of the Department of Otorhinolaryngology Head and Neck Surgery at Shanghai Sixth People's Hospital from July to September 2023. The subjects underwent simultaneous monitoring with both PSG and the QSA600 system. One hundred and forty-five subjects consisting of 75 males and 70 females included in the final analysis, with an average age of (35.30±12.41) years, an average height of (168.23±8.08) cm, and an average weight of (68.28±13.74) kg. The subjects were divided into four groups based on the apnea-hypopnea index (AHI): <5.0 events/h (non-OSA group, 39 cases), ≥5.0-<15.0 events/h (mild OSA group, 47 cases), ≥15.0-<30.0 events/h (moderate OSA group, 25 cases), and≥30.0 events/h (severe OSA group, 34 cases). Intraclass correlation coefficients (ICC), Pearson correlation coefficients (<i>r</i>), and Bland-Altman analysis were employed to assess the agreement between the two monitoring techniques regarding AHI and other parameters. Sensitivity and specificity of the QSA600 in diagnosing OSA were evaluated at different AHI thresholds. Statistical analyses were conducted using MATLAB R2022a. <b>Results:</b> Using AHI 5 events/h, 15 events/h and 30 events/h as thresholds, the sensitivity for diagnosing mild, moderate, and severe OSA was 88.68%, 89.83% and 97.06%, respectively. The specificity was 94.87%, 98.84% and 99.10%, respectively. The areas under the receiver operating characteristic (ROC) curve was 0.973 4, 0.990 9 and 0.999 5, respectively. The comparison of key indicators between QSA600 and PSG diagnostic results revealed:a Pearson correlation coefficient of 0.987 2(<i>P</i><0.001) between the AHI measurement values. The mean difference between the Bland-Altman measurement values of the two was -1.43(95%<i>CI</i>:-8.74-5.88) events/h and the ICC between the two was 0.985 0(95%<i>CI</i>: 0.975 4-0.990 4). <b>Conclusions:</b> As a new low-load sleep monitoring system, QSA600 demonstrates high concordance with traditional PSG in diagnosing OSA and stratifying its severity, which has promising potential for clinical application. (Clinical trial registration number: NCT06038006).</p>","PeriodicalId":23987,"journal":{"name":"Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery","volume":"59 8","pages":"857-863"},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Analysis of clinical characteristics and curative effects of 169 patients with bilateral sudden sensorineural hearing loss].","authors":"X H Zhao, X N Wu, H R Wang, D Bing, D Y Wang, Q J Wang","doi":"10.3760/cma.j.cn115330-20231011-00139","DOIUrl":"https://doi.org/10.3760/cma.j.cn115330-20231011-00139","url":null,"abstract":"<p><p><b>Objective:</b> To analyze the clinical characteristics, curative effect related factors and follow-up situation of bilateral sudden sensorineural hearing loss (BSSHL). <b>Methods:</b> The clinical data of 169 patients(338 ears) with BSSHL were retrospectively summarized, and the demographic characteristics, predisposing factors, concomitant symptoms and diseases, and audiological characteristics were statistically described. Additionally, influencing factors of curative effect and prognosis were statistically analyzed. <b>Results:</b> Among the 169 patients, 50.9% (86/169) of patients had at least one incentive, with cold and fatigue being the most common incentives(both 23/169). There were high rates of accompanying symptoms including tinnitus (150/169, 88.8%) and dizziness (100/169, 59.2%). Hypertension(49/169, 29.0%)and diabetes(23/169, 13.6%)were the most common concomitant diseases observed. Most cases exhibited all frequencies involvement, with flat type and total deafness type accounting for 83.1%(281/338 ears). The most common degree of hearing loss was total deafness(86/338 ears), with approximately 60.1%(203/338 ears) of the cases being severe or worse. The total effective rate of treatment was only 29.0%, but it increased to 39.5% for patients with course of disease≤14 days, however, when course of disease>30 days, the effective rate decreased sharply to 3.6%, showing a significant difference between these two groups(<i>χ</i><b>²</b>=13.776,<0.01). Different types of hearing curves showed statistically significant difference in efficiency(<i>χ</i><b>²</b>=14.782, <i>P</i><0.01). Comparing the hearing improvements of 28 BSSHL patients from admission to discharge and from discharge to follow-up, it was found that the hearing improvement of the two groups showed statistically significant difference at the frequencies of L-250 Hz, L-500 Hz, R-125 Hz, R-250 Hz and R-500 Hz(<i>Z</i> value was -2.495, -3.083, -3.970, -3.388 and -3.264 respectively, all <i>P</i><0.05). The proportion of patients with elevated serum IgE was much higher than that of the normal population. <b>Conclusion:</b> BSSHL patients suffer from serious hearing loss, and many also experience tinnitus and vertigo symptoms. Due to the poor efficiency of treatment, it is better for patients to be treated within 30 days of onset. For patients of hearing loss in the low frequency range, hearing improvement is more significant during hospitalization. And the occurrence of BSSHL may involve an immune mechanism.</p>","PeriodicalId":23987,"journal":{"name":"Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery","volume":"59 8","pages":"785-791"},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Surgical management strategy for metastatic cervical lymph nodes surrounding the carotid artery in head and neck squamous cell carcinoma].","authors":"H D Zhang, S C Gong, K Sun, H Wang, L J Zhou, Y F Yan, K Liu, X J Lyu, Z K Yu","doi":"10.3760/cma.j.cn115330-20240226-00107","DOIUrl":"https://doi.org/10.3760/cma.j.cn115330-20240226-00107","url":null,"abstract":"<p><p><b>Objective:</b> To explore the surgical intervention strategy for metastatic cervical lymph nodes surrounding the carotid artery in head and neck squamous cell carcinoma. <b>Methods:</b> A total of 62 patients with advanced head and neck tumors and carotid wrap by disease treated in Department of Otorhinolaryngology and Head and Neck Surgery, the Affiliated BenQ Hospital of Nanjing Medical University between June 2019 and December 2023 were reviewed, of whom 9 patients presented with metastatic squamous cell carcinoma in cervical lymph nodes of unknown primary or with no recurrence of primary lesion and all the 9 patients were males, aged from 48 to 79 years old, with≤level 2 of Eastern Cooperative Oncology Group-Performance Status (ECOG-PS). Radiographically common carotid artery (CCA) and/or internal carotid artery (ICA) were surrounded by≥270° with tumor. All the 9 patients received implantation of covered stent in carotid artery and radical resection of metastatic cervical lymph nodes. The success rate, complications, surgery-related complications, local recurrence rate, quality of life (QOL) and overall survival (OS) were analyzed. The QOL of patients was compared by paired rank sum test, and <i>P</i><0.05 indicated statistically significant difference. The OS was analyzed by Kaplan-Meier. <b>Results:</b> The success rate of stent implantation was 100%, with no implantation-related complications. R0 resection was performed in 8 cases and R1 resection in 1 case. The QOL of patients after surgery was improved, and the improvements in \"pain\", \"mood\" and \"anxiety\" were statistically significant(<i>Z</i> values were -2.236, -2.460 and -2.200, respectively, and all <i>P</i> values were<0.05). Follow-up was 1-18 months, with a median of 7 months, and 1 case was lost to follow-up. Local recurrence occurred in 3 patients with an incidence of 37.5% (3/8). OS was 59.9% at 12 months after surgery. <b>Conclusion:</b> Implantation of covered stent in carotid artery combined with radical resection is an effective method for the treatment of cervical lymph node metastasis.</p>","PeriodicalId":23987,"journal":{"name":"Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery","volume":"59 8","pages":"850-856"},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Altered functional connectivity of parietal opercular 2 in patients with vestibular migraine: a resting-state fMRI study].","authors":"Z W Chen, C X Lin, Y J Liu, D Liu, L Q Rong, H Y Liu, X E Wei, L J Xiao","doi":"10.3760/cma.j.cn115330-20230916-00094","DOIUrl":"https://doi.org/10.3760/cma.j.cn115330-20230916-00094","url":null,"abstract":"<p><p><b>Objective:</b> To investigate the differences in resting-state functional connectivity (FC) between patients with vestibular migraine (VM) and migraine without aura (MwoA) in order to infer the possible neuroimaging mechanisms of VM. <b>Methods:</b> Thirty VM patients admitted to the Department of Neurology of the Second Affiliated Hospital of Xuzhou Medical University from December 2019 to December 2022 were selected as the experimental group (EG) (6 males and 24 females, with mean age of 38.3 years) and 26 MwoA patients as the control group (7 males and 19 females, mean age 35.5 years). General demographic and clinical data such as gender, age, year of education, course of disease and frequency of attacks were collected for all the patients, as well as data of Hamilton Anxiety Scale (HAMA), Hamilton Depression Scale (HAMD), Montreal Cognitive Assessment (MoCA), headache Visual Arialogue Scale (VAS), Headache Impact Test 6 (HIT-6) and Migraine Disability Assessment Questionnaire (MIDAS). VM patients were also assessed by Dizziness Handicap Inventory (DHI), dizziness VAS and Vestibular Disorders Activities of Daily Living (VADL) scales. All patients underwent resting-sate functional Magnetic Resonance Imaging (fMRI) scans. Bilateral parietal opercular cortex 2 (OP2) and primary visual cortex (V1) were used as regions of interests (ROIs). Differences in FC between ROIs and other brain regions were calculated between the two groups. In view of the brain regions with significant differences, z-values of FC were extracted for each subject in the EG, and Pearson partial correlation analysis was conducted between z-values of FC and clinical characteristics of patients, <i>P</i><0.05 was considered to have significant correlation. SPSS 22.0 was used for statistical analysis. <b>Results:</b> There was no significant difference in gender, age, years of education, course of disease, frequency of attack and scores of MoCA, HAMA and HAMD between the two groups (<i>P</i>>0.05). Headache VAS, HIT-6 and MIDAS scores in VM patients were significantly lower than those in MwoA patients (<i>P</i><0.05). Compared with MwoA patients, the FC between left OP2 and bilateral precuneus and left thalamus was significantly increased in VM patients, and the FC between right OP2 and left thalamus and right anterior cingulate gyrus were significantly increased (<i>P</i><0.05, False Discovery Rate correction). Correlation analysis showed that the FC between left OP2 and left precuneus was positively correlated with DHI score in VM patients (<i>P</i>=0.007, <i>r</i>=0.480), and the FC between right OP2 and left thalamus was positively correlated with the disease course in VM patients (<i>P</i>=0.015, <i>r</i>=0.439). <b>Conclusions:</b> The pathogenesis of VM may be related to the altered FC of vestibular, pain and visual-motor networks, abnormalities of these neural pathways may be important imaging biomarkers of VM pathogenesis.</p>","PeriodicalId":23987,"journal":{"name":"Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery","volume":"59 8","pages":"812-819"},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[One case of ear mite in external auditory canal].","authors":"L W Wang, L J Yang, H Z Xue, Z S Wang, P Shen, T Liu, L J Li, Y Li, M G Yang","doi":"10.3760/cma.j.cn115330-20240514-00281","DOIUrl":"10.3760/cma.j.cn115330-20240514-00281","url":null,"abstract":"","PeriodicalId":23987,"journal":{"name":"Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery","volume":"59 8","pages":"864-865"},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Advances in diagnostic and therapeutic research on bilateral vestibulopathy].","authors":"X Y Chen, B Liu, H J Xiao","doi":"10.3760/cma.j.cn115330-20240521-00296","DOIUrl":"https://doi.org/10.3760/cma.j.cn115330-20240521-00296","url":null,"abstract":"","PeriodicalId":23987,"journal":{"name":"Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery","volume":"59 8","pages":"890-896"},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}