Himanshu Verma , Banumathy N , Roshani Mishra , Naresh K. Panda
{"title":"Outcome measures following tele-rehabilitation and conventional face to face rehabilitation in paediatric cochlear implant users during COVID-19 pandemic: A pilot study in a tertiary care setup","authors":"Himanshu Verma , Banumathy N , Roshani Mishra , Naresh K. Panda","doi":"10.1016/j.joto.2021.10.002","DOIUrl":"10.1016/j.joto.2021.10.002","url":null,"abstract":"<div><h3>Background</h3><p>Following the COVID-19 pandemic, majority of paediatric cochlear implantees (CI) lost follow ups for rehabilitation and tele-therapy was initiated. Present study thus compared the outcome measures of paediatric CI users on tele-therapy versus conventional face to face therapy following COVID-19 pandemic.</p></div><div><h3>Method</h3><p>Twenty seven unilateral paediatric cochlear implantees in the age range of 2–11 years were divided into two groups based on the therapy modality, viz, tele- and face-to-face therapy. Based on the hearing age, participants were further divided into three groups, viz, 0–2, 2–4, and greater than four years. A complete the test battery comprising Integrated Scales of Development, Speech Intelligibility Rating scale, and Revised Categorical Auditory Perception were administered. The speech & language test battery was performed prior to initiating the rehabilitation and post 12 months of rehabilitation.</p></div><div><h3>Results</h3><p>Results of the present study revealed that conventional rehabilitation had better outcomes compared to teletherapy. The rate of progress after one year of rehabilitation with respect to hearing-age showed a significant difference for the hearing-age group of 0–2 years across the domains of audition, speech and language.</p></div><div><h3>Conclusion</h3><p>The present study indicates that conventional method of the speech-language and auditory rehabilitation is far better compared to the tele rehabilitation services especially for those visiting tertiary care hospitals as most of them belong to lower and middle socioeconomic status. From the results, it can be delineated that with lesser hearing experience, paediatric CI users always need to initially enroll for conventional therapy for better speech-language and auditory outcomes.</p></div>","PeriodicalId":37466,"journal":{"name":"Journal of Otology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/82/f2/main.PMC8559455.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39851096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Molecular mechanisms and roles of inflammatory responses on low-frequency residual hearing after cochlear implantation","authors":"Juanjuan Gao, Haijin Yi","doi":"10.1016/j.joto.2021.03.001","DOIUrl":"10.1016/j.joto.2021.03.001","url":null,"abstract":"<div><p>Preservation of low-frequency residual hearing is very important for combined electro-acoustic stimulation after cochlear implantation. However, in clinical practice, loss of low-frequency residual hearing often occurs after cochlear implantation and its mechanisms remain unclear. Factors affecting low-frequency residual hearing after cochlear implantation are one of the hot spots in current research. Inflammation induced by injury associated with cochlear implantation is deemed to be significant, as it may give rise to low-frequency residual hearing loss by interfering with the blood labyrinth barrier and neural synapses. Pathological changes along the pathway for low-frequency auditory signals transmission may include latent factors such as damage to neuroepithelial structures, synapses, stria vascularis and other ultrastructures. In this review, current research on mechanisms of low-frequency residual hearing loss after cochlear implantation and possible roles of inflammatory responses are summarized.</p></div>","PeriodicalId":37466,"journal":{"name":"Journal of Otology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.joto.2021.03.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39609455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yanqing Fang , Wei Chen , Liu-Jie Ren , Sebastian Kiehn , Yilai Shu , Bing Chen
{"title":"Stability of computed tomography densitometry in patients with otosclerosis:a two-year follow-up","authors":"Yanqing Fang , Wei Chen , Liu-Jie Ren , Sebastian Kiehn , Yilai Shu , Bing Chen","doi":"10.1016/j.joto.2021.10.003","DOIUrl":"10.1016/j.joto.2021.10.003","url":null,"abstract":"<div><h3>Objectives</h3><p>To quantify the progression of otosclerosis in the unoperated ear between two stapedotomy procedures for patients with bilateral otosclerosis which can help to determine whether a HRCT scan should be re-performed before the second surgery for patients who already received HRCT imaging before the initial surgery.</p></div><div><h3>Methods</h3><p>35 patients who underwent bilateral stapedotomy were included. Two rounds of HRCT examination and audiometry were performed at the time of the first surgery and second surgery on the ear that was not operated on during the initial surgery. The relationship between the changes in HRCT densitometry and audiometry over time was analyzed.</p></div><div><h3>Results</h3><p>The second round of HRCT did not add significant information about the changes to the otosclerosis lesions in either the imaging diagnosis or the HRCT density values except for small changes in the HRCT densitometry readings at the area anterior to the inner auditory (P = 0.01). While the changes in HRCT manifestation are small, changes near the fissula ante fenestram (FAF) were still positively correlated with the air bone gap (ABG) of patients (p = 0.031, r = 0.388).</p></div><div><h3>Conclusions</h3><p>The progression of lesions in otosclerosis is slow resulting in small and insignificant changes to the HRCT features. Therefore, a repeat HRCT evaluations prior to surgery is not necessary for patients who have had a previous HRCT evaluation within 2 years of the operation. The small changes in HRCT manifestation near the FAF were still correlated with negative effects on the ABG which could cause worsened hearing thresholds over this timeframe.</p></div>","PeriodicalId":37466,"journal":{"name":"Journal of Otology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/d6/5f/main.PMC8811413.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39609452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jaclyn Carey, Sairisheel Gabbireddy , Luke Mammen , Gianna Rosamilia , Varun Patel, David Foyt, Steven Parnes
{"title":"FDA MAUDE database analysis of titanium middle ear prosthesis","authors":"Jaclyn Carey, Sairisheel Gabbireddy , Luke Mammen , Gianna Rosamilia , Varun Patel, David Foyt, Steven Parnes","doi":"10.1016/j.joto.2021.08.002","DOIUrl":"10.1016/j.joto.2021.08.002","url":null,"abstract":"<div><h3>Purpose</h3><p>Partial ossicular replacement (PORP) and total ossicular replacement prostheses (TORP) are used to restore ossicular chain function. Despite favorable auditory outcomes, these interventions have associated risks and complications. This study examines the FDA MAUDE database for ossicular chain prosthesis adverse events to highlight complications, interventions, and root cause analysis (RCA) findings.</p></div><div><h3>Materials and methods</h3><p>The MAUDE database was searched for Medical Device Reports (MDRs) relating to PORPs and TORPs from 2010 to 2020. MDR event descriptions were reviewed, and adverse events were identified as a device issue, patient issue, and/or packaging issue that occurred intraoperatively or postoperatively.</p></div><div><h3>Results</h3><p>Our search identified 70 MDRs which included 110 reported adverse events. Events consisted of 63 device issues, often due to device breaks and displacements, 39 patient issues, including common complaints of hearing loss and erosion, and 8 packaging issues. When comparing PORPs and TORPs, TORPs had more reported device issues whereas PORPs had more packaging issues. Intraoperative device issues were commonly resolved by completing the procedure with a backup device and most postoperative device issues required additional surgery. For devices returned to the manufacturer, RCA determined that most breaks were caused by modification and/or mishandling or that the product met specifications with an undetermined cause for the break.</p></div><div><h3>Conclusion</h3><p>Device issues were the most common adverse events and frequently required subsequent intervention. Displacement occurred more often with TORPs and was associated with changes in hearing or erosion. The findings of this study are purely descriptive and may not have direct clinical relevance.</p></div>","PeriodicalId":37466,"journal":{"name":"Journal of Otology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.joto.2021.08.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39609450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F.L.J. Cals MD, PhD, H.F.E. van der Toom, R.M. Metselaar, A. van Linge, M.P. van der Schroeff, R.J. Pauw
{"title":"Postoperative surgical site infection in cholesteatoma surgery with and without mastoid obliteration, what can we learn?","authors":"F.L.J. Cals MD, PhD, H.F.E. van der Toom, R.M. Metselaar, A. van Linge, M.P. van der Schroeff, R.J. Pauw","doi":"10.1016/j.joto.2021.10.001","DOIUrl":"10.1016/j.joto.2021.10.001","url":null,"abstract":"<div><h3>Introduction</h3><p>This study aims to describe the occurrence of postoperative complications related to cholesteatoma surgery and to determine factors influencing the most common complication, i.e. postoperative surgical site infection (SSI) in cases with and without mastoid obliteration.</p></div><div><h3>Materials and methods</h3><p>Retrospective analyses were performed on surgically treated cholesteatomas in our hospital between 2013 and 2019. Patient characteristics, peri- and postoperative management and complications were reviewed. The cases were divided into two groups based on whether mastoid obliteration was performed or not.</p></div><div><h3>Results</h3><p>A total of 336 cholesteatoma operations were performed, of which 248 cases received mastoid obliteration. In total 21 complications were observed, of which SSI was the most common (15/21). No difference in occurrence of any postoperative complication was seen between the obliteration and no-obliteration group (<em>p</em> = 0.798), especially not in the number of SSI (<em>p</em> = 0.520). Perioperative and/or postoperative prophylactic antibiotics were not associated to the development of an SSI in both groups. In the no-obliteration group a younger age <em>(p</em> = 0.015), as well as primary surgery (<em>p</em> = 0.022) increased the risk for SSI. In the obliteration group the use of bioactive glass (BAG) S53P4 was identified as independent predictor of SSI (<em>p</em> = 0.008, OR 5.940).</p></div><div><h3>Discussion</h3><p>SSI is the most common postoperative complication in cholesteatoma surgery. The causes of SSI are multifactorial, therefore further prospective research is needed to answer which factors can prevent the development of an SSI in cholesteatoma surgery.</p></div>","PeriodicalId":37466,"journal":{"name":"Journal of Otology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/23/61/main.PMC8811380.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39609451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Hoste , M. Cabri-Wiltzer , S. Hassid , J.-C. Degols , J. Vilain
{"title":"Hearing loss due to urate deposition in the middle ear: A case report and literature review","authors":"M. Hoste , M. Cabri-Wiltzer , S. Hassid , J.-C. Degols , J. Vilain","doi":"10.1016/j.joto.2021.09.001","DOIUrl":"10.1016/j.joto.2021.09.001","url":null,"abstract":"<div><p>Gout is the most common cause of monoarthritis in men occurring classically in the great toe and the knee. Extra-articular gout manifestations are rare. Only a few cases of head and neck urate crystals deposits have been described in the literature. Precipitations in the middle ear cause conductive hearing loss with common otoscopic anomalies and difficult imaging diagnosis.</p><p>We report a case of a healthy 58-years-old man with a middle ear urate deposit causing a progressive hearing loss as the very first symptom of gout. The nature of the deposit was unsure on computer tomography (CT) due to atypical density. The final diagnosis was revealed after surgical procedure and histologic examination.</p><p>A review of the literature is also presented. Seven cases of middle ear urate deposit as the first symptom of gout were found and compared.</p><p>Progressive conductive hearing loss in middle-aged patients with abnormal otoscopy and middle ear atypical density mass on CT scan must lead to a minimal surgical procedure with a histologic examination to exclude urate crystals deposits.</p></div>","PeriodicalId":37466,"journal":{"name":"Journal of Otology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/46/7d/main.PMC8811378.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39609454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unilateral mimicking bilateral BPPV- a forgotten entity? Characteristics of a large cohort of patients, comparison with posterior canal BPPV and clinical implications","authors":"Lea Pollak , Ronit Gilad , Tal Michael","doi":"10.1016/j.joto.2021.06.002","DOIUrl":"10.1016/j.joto.2021.06.002","url":null,"abstract":"<div><h3>Objective</h3><p>Unilateral mimicking bilateral benign paroxysmal positional vertigo (umb-BPPV) was attributed to inappropriate head positioning during testing of the posterior canal. Despite its inclusion in the Diagnostic criteria for the classification of vestibular disorders of the Bárány Society, the clinical characteristics and treatment responsiveness of this BPPV subtype have not been intensively studied.</p></div><div><h3>Methods</h3><p>Records of patients with BPPV seen at a single outpatient dizziness clinic during the years 2000–2020 were reviewed. Eighty seven patients with umb-BPPV and 86 random patients with posterior canal BPPV (p-BPPV) were retrieved. Their demographics and BPPV characteristics were analyzed.</p></div><div><h3>Results</h3><p>Patients' and BPPV characteristics were similar in umb- and p-BPPV except for the prevalence of males in the umb-BPPV group. No differences were found between treatment responsiveness and recurrences in both groups. The recurrence rate of umb-BPPV was not influenced by age, gender, BPPV side, duration of symptoms or treatment responsiveness during the first attack.</p></div><div><h3>Conclusions</h3><p>In accordance with our hypothesis about mixed canalo- and cupulolithiasis as the underlying mechanism of umb-BPPV, patients did not differ in characteristics and treatment responsiveness from p-BPPV patients. Recognition of umb-BPPV is important since inappropriate treatment can cause an unnecessary delay in therapy success.</p></div>","PeriodicalId":37466,"journal":{"name":"Journal of Otology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.joto.2021.06.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39439585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jennifer Coto , Carmen L. Alvarez , Ivette Cejas , Brett M. Colbert , Bonnie E. Levin , Joshua Huppert , Tatjana Rundek , Carey Balaban , Susan H. Blanton , David J. Lee , David Loewenstein , Michael Hoffer , Xue Zhong Liu
{"title":"Peripheral vestibular system: Age-related vestibular loss and associated deficits","authors":"Jennifer Coto , Carmen L. Alvarez , Ivette Cejas , Brett M. Colbert , Bonnie E. Levin , Joshua Huppert , Tatjana Rundek , Carey Balaban , Susan H. Blanton , David J. Lee , David Loewenstein , Michael Hoffer , Xue Zhong Liu","doi":"10.1016/j.joto.2021.06.001","DOIUrl":"10.1016/j.joto.2021.06.001","url":null,"abstract":"<div><p>Given the interdependence of multiple factors in age-related vestibular loss (e.g., balance, vision, cognition), it is important to examine the individual contributions of these factors with ARVL. While the relationship between the vestibular and visual systems has been well studied (<span>Bronstein et al., 2015</span>), little is known about the association of the peripheral vestibular system with neurodegenerative disorders (<span>Cronin et al., 2017</span>). Further, emerging research developments implicate the vestibular system as an opportunity for examining brain function beyond balance, and into other areas, such as cognition and psychological functioning. Additionally, the bidirectional impact of psychological functioning is understudied in ARVL. Recognition of ARVL as part of a multifaceted aging process will help guide the development of integrated interventions for patients who remain at risk for decline. In this review, we will discuss a wide variety of characteristics of the peripheral vestibular system and ARVL, how it relates to neurodegenerative diseases, and correlations between ARVL and balance, vision, cognitive, and psychological dysfunction. We also discuss clinical implications as well as future directions for research, with an emphasis on improving care for patients with ARVL.</p></div>","PeriodicalId":37466,"journal":{"name":"Journal of Otology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.joto.2021.06.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39439586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P.H. DeJonckere , B. Millet , R. Van Gool , A. Martens , J. Lebacq
{"title":"Objective frequency-specific hearing thresholds definition for medicolegal purposes in case of occupational NIHL: ASSR outperforms CERA","authors":"P.H. DeJonckere , B. Millet , R. Van Gool , A. Martens , J. Lebacq","doi":"10.1016/j.joto.2021.02.002","DOIUrl":"10.1016/j.joto.2021.02.002","url":null,"abstract":"<div><p>Audiological use of the 40 Hz-ASSR (auditory steady state responses) could be valuable for objectively estimating the frequency-specific threshold in adults undergoing an expertise examination for medicolegal and/or compensation purposes. The present prospective study was set up to clarify the relationship between the thresholds obtained by cortical evoked response audiometry (CERA) and by 40 Hz-ASSR, in the same ears, within a large homogeneous sample of 164 subjects (328 ears) with NIHL and well documented exposure to noise. All these subjects claimed financial compensation for occupational NIHL, and there was a suspicion of exaggeration of the reported NIHLs. ASSR thresholds show a good correlation with the CERA thresholds. However, a systematic shift is noticed, ASSR thresholds being on average (1–2 – 3 kHz) 4.38 dB lower (i.e. showing less hearing loss) than CERA thresholds. Moreover, the binaural multiple ASSR technique allows a considerable time gain when compared to the CERA.</p></div>","PeriodicalId":37466,"journal":{"name":"Journal of Otology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.joto.2021.02.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39437297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The comparison of auditory behavioral and evoked potential responses (steady state and cortical) in subjects with occupational noise-induced hearing loss","authors":"P.H. DeJonckere , J. Lebacq","doi":"10.1016/j.joto.2021.05.002","DOIUrl":"10.1016/j.joto.2021.05.002","url":null,"abstract":"<div><h3>Objective</h3><p>To define difference scores between PTA, ASSR and CERA thresholds in subjects with occupational NIHL.</p></div><div><h3>Design</h3><p>44 subjects undergoing a medico-legal expert assessment for occupational NIHL and fulfilling criteria of reliability were considered. Assessment included: PTA, 40 Hz binaural multiple ASSR and CERA (1-2-3 kHz).</p></div><div><h3>Results</h3><p>The respective average difference scores (ASSR - PTA) for 1, 2 and 3 kHz are 13.01 (SD 10.19) dB, 12.72 (SD 8.81) dB and 10.38 (SD 8.19) dB. The average (CERA - ASSR) difference scores are 1.25 (SD 14.63) dB for 1 kHz (NS), 2.73 (SD 13.03) dB for 2 kHz (NS) and 4.51 (SD 12.18) dB for 3 kHz. The correlation between PTA and ASSR (0.82) is significantly stronger than that between PTA and CERA (0.71). In a given subject, PTA thresholds are nearly always lower (<em>i.e.,</em> better) than ASSR thresholds, whatever the frequency (1-2-3 kHz) and the side (right – left). A significant negative correlation is found between the difference score (ASSR – PTA) and the degree of hearing loss.</p></div><div><h3>Conclusion</h3><p>ASSR outperforms CERA in a medicolegal context, although overestimating the behavioral thresholds by 10–13 dB<sub>.</sub></p></div>","PeriodicalId":37466,"journal":{"name":"Journal of Otology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.joto.2021.05.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39439584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}