Michelle J Suh, Jihyun Lee, Wan-Ho Cho, In-Ki Jin, Tae Hoon Kong, Soo Hee Oh, Hyo-Jeong Lee, Seong Jun Choi, Dongchul Cha, Kyung-Ho Park, Young Jun Seo
{"title":"Improving Accuracy and Reliability of Hearing Tests: An Exploration of International Standards.","authors":"Michelle J Suh, Jihyun Lee, Wan-Ho Cho, In-Ki Jin, Tae Hoon Kong, Soo Hee Oh, Hyo-Jeong Lee, Seong Jun Choi, Dongchul Cha, Kyung-Ho Park, Young Jun Seo","doi":"10.7874/jao.2023.00388","DOIUrl":"10.7874/jao.2023.00388","url":null,"abstract":"<p><p>This study explores the internal standards for hearing tests and benefits of implementing international standard protocols, including the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC), and discusses how ISO and IEC standards provide a framework for designing, calibrating, assessing hearing test instruments and methods, and exchanging and comparing data globally. ISO and IEC standards for hearing tests improve accuracy, reliability, and consistency of test results by applying standardized methods and environments. Moreover, they promote international harmonization and data interoperability, enabling information exchange and research collaboration. Those standards for hearing tests are beneficial but have challenges and limitations, such as variation in equipment and calibration, lag in updating standards, variation in implementation and compliance, and lack of coverage of clinical aspects, cultural diversity, and linguistic diversity. These affect the quality and interpretation of test results. Adapting ISO or IEC standards locally would improve their applicability and acceptability, while balancing customization and compatibility with global standards.</p>","PeriodicalId":44886,"journal":{"name":"Journal of Audiology and Otology","volume":"27 4","pages":"169-180"},"PeriodicalIF":1.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/2c/24/jao-2023-00388.PMC10603284.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49693007","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}
Bongil Park, Pyung Kon Thak, Euyhyun Park, Soo Jeong Choi, Juhyun Lee, Sooun Kwak, Hak Hyun Jung, Gi Jung Im
{"title":"Dynamic Range and Neural Response Threshold in Cochlear Implant Mapping Can Be Useful in Predicting Prognosis Related to Postoperative Speech Perception.","authors":"Bongil Park, Pyung Kon Thak, Euyhyun Park, Soo Jeong Choi, Juhyun Lee, Sooun Kwak, Hak Hyun Jung, Gi Jung Im","doi":"10.7874/jao.2023.00374","DOIUrl":"10.7874/jao.2023.00374","url":null,"abstract":"<p><strong>Background and objectives: </strong>To analyze mapping changes in dynamic range (DR) and neural response threshold (NRT) as prognostic factors for cochlear implant (CI). To analyze whether postoperative speech perception performance could be predicted using DR change and initial NRT.</p><p><strong>Subjects and methods: </strong>The speech comprehension data of 33 patients with CI were retrospectively analyzed after 1, 3, 6, and 12 months of device use. All subjects were adult, postlingually hearing-impaired, and Cochlear Nucleus CI users. Speech perception performance was evaluated using aided pure tone audiometry, consonant, vowel, one-word, two-word, and sentence tests.</p><p><strong>Results: </strong>The averages of initial NRT and DR changes were 197.8±25.9 CU (104-236) and 22.2±18.4 CU (-15-79), respectively. The initial DR was 40.8±16.6 CU. The postoperative DR was 50.3±16.4 CU at 3 months, 58±12.3 CU at 6 months, and 62.9±10.4 CU at 12 months. A gradual increase of DR was observed during the first year of CI. Compared with the initial DR, significant increases in DR were observed at 3 (p<0.05), 6 (p<0.001), and 12 (p<0.001) months. Compared with initial speech performance outcomes, a significant gain in all performance outcomes was achieved at 12 months (p<0.001).</p><p><strong>Conclusions: </strong>Patients with low NRT after CI surgery could initially set DR to a wider range and had better final speech perception outcomes. Conversely, patients with high NRT after CI surgery had to set up a gradual increase in DR while adjusting the T-C level, and the final speech perception outcomes were worse. DR and NRT, the main CI mapping variables, can help predict prognosis related to speech perception outcomes after CI surgery. In conclusion, the post-CI speech perception is better with a lower initial NRT, wider final DR, or younger age.</p>","PeriodicalId":44886,"journal":{"name":"Journal of Audiology and Otology","volume":"27 4","pages":"212-218"},"PeriodicalIF":1.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/d5/86/jao-2023-00374.PMC10603277.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49693006","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":"Selective Unilateral Inner Hair Cell Injury: A Case Report.","authors":"Mehulla Jain, Shana Yasmin, Sumanth Chakkere Prakash, Chandni Jain","doi":"10.7874/jao.2022.00171","DOIUrl":"10.7874/jao.2022.00171","url":null,"abstract":"<p><p>Sensorineural hearing loss (SNHL) is known to be associated with lesions at various sites, including outer hair cell (OHC) and inner hair cell (IHC) injury, as well as auditory dyssynchrony or vestibulocochlear nerve tumors. Therefore, it is important to establish the differential diagnosis of SNHL, which however is particularly challenging in patients with unilateral SNHL. The test battery approach is effective for accurate diagnosis in such cases. In this report, we discuss the usefulness of the test battery approach to accurately detect the site of the lesion in a patient with unilateral hearing loss. A 14-year-9-month-old adolescent who observed decreased hearing sensitivity in the left ear accompanied by difficulty with understanding speech at a distance was diagnosed with unilateral hearing loss in the left ear. In this report, we describe a rare and diagnostically challenging case of unilateral SNHL in a patient with normal OHC function and selective injury to IHCs, which was diagnosed using a test battery approach.</p>","PeriodicalId":44886,"journal":{"name":"Journal of Audiology and Otology","volume":" ","pages":"235-239"},"PeriodicalIF":1.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/2b/be/jao-2022-00171.PMC10603279.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10737662","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}
Tety Hadiaty Rahim, Deni Kurniadi Sunjaya, Dany Hilmanto, Wijana Hasansulama, Frans Zefanya Putra
{"title":"Hearing Screening Alternative Using a Website-Based Application.","authors":"Tety Hadiaty Rahim, Deni Kurniadi Sunjaya, Dany Hilmanto, Wijana Hasansulama, Frans Zefanya Putra","doi":"10.7874/jao.2023.00045","DOIUrl":"https://doi.org/10.7874/jao.2023.00045","url":null,"abstract":"<p><strong>Background and objectives: </strong>Indonesians encounter several barriers to regular functional hearing assessment. Hearing loss screening is only provided by tertiary-care hospitals that are not reachable by people in remote regions. This study aimed to develop a website-based hearing screening application that is accessible and inexpensive. Subjects and.</p><p><strong>Methods: </strong>This comparative study was conducted between July and August 2022 in the Otolaryngology Clinic of Muhammadiyah Bandung Hospital with noise levels below 50 dB. The hearing screening was conducted using a website-based application (www.Screenout.id) and audiogram as the gold standard method. On ScreenOut, patients heard sounds with frequencies at 500, 1,000, 2,000, 4,000, and 8,000 Hz and sound intensity of each frequency at 35, 55, and 75 dB using earphones.</p><p><strong>Results: </strong>A total of 133 participants were enrolled in our study. ScreenOut showed high sensitivity, specificity, accuracy, positive predictive value, and negative predictive value (90.9%, 98.9%, 93.6%, 99.4%, and 84.8%, respectively). Regarding hearing threshold, a very strong correlation was found between ScreenOut and audiogram, ranging between r=0.843 and r=0.899. Aside from that, there was no significant difference in hearing threshold values between ScreenOut and audiogram.</p><p><strong>Conclusions: </strong>Many advantages of the ScreenOut were found, including low-cost, accessibility, and easy-to-use interface, making it favorably used in low-middle-income countries such as Indonesia.</p>","PeriodicalId":44886,"journal":{"name":"Journal of Audiology and Otology","volume":"27 3","pages":"123-127"},"PeriodicalIF":1.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/b9/57/jao-2023-00045.PMC10352691.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9827220","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":"Validation of the Sinhala Version of Tinnitus Handicap Inventory.","authors":"Asiri Rodrigo, Thilini Abayabandara-Herath","doi":"10.7874/jao.2022.00521","DOIUrl":"https://doi.org/10.7874/jao.2022.00521","url":null,"abstract":"Background and Objectives Tinnitus is a common and disabling condition that largely remains undertreated in Sri Lanka. Currently, standardized tools that assess and monitor the treatment of tinnitus or the distress it causes are unavailable in either of the two main vernacular languages prevalent in Sri Lanka. The Tinnitus Handicap Inventory (THI) is used internationally to measure tinnitus-induced distress and to monitor treatment efficacy. In this study, we validated the Sinhala version of the THI (THI-Sin). Subjects and Methods The THI was translated into Sinhala and back translated into English and finalized by independent translators. The THI-Sin questionnaire and the 12-item General Health Questionnaire (GHQ-12) and Visual Analog Scale of tinnitus annoyance (VAS) were administered to 122 adults who visited the otolaryngology clinic of Colombo North Teaching Hospital, Ragama, Sri Lanka Results THI-Sin scores showed satisfactory internal consistency (Cronbach’s α=0.902) and were significantly correlated with the GHQ-12 and VAS scores. Factor analysis of the THI-Sin confirmed a three-factorial structure, which did not correspond to the original THI subscales. Conclusions We observed significant reliability and validity of the THI-Sin tool for evaluation of tinnitus-induced handicaps among the Sinhalese-speaking population of Sri Lanka.","PeriodicalId":44886,"journal":{"name":"Journal of Audiology and Otology","volume":"27 3","pages":"128-132"},"PeriodicalIF":1.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a2/40/jao-2022-00521.PMC10352688.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9835321","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}
Sathya Harinath, Somu Lakshmanan, Saji James, Sandeep Maruthy
{"title":"Recovery From Otitis Media and Associated Factors Among 1- to 6-Year-Old Children in South India: A Longitudinal Study.","authors":"Sathya Harinath, Somu Lakshmanan, Saji James, Sandeep Maruthy","doi":"10.7874/jao.2022.00542","DOIUrl":"https://doi.org/10.7874/jao.2022.00542","url":null,"abstract":"<p><strong>Background and objectives: </strong>This study was aimed at assessing recovery from otitis media (OM) and variables associated with it among 1- to 6-year-old children. Subjects and.</p><p><strong>Methods: </strong>We assessed 87 children with OM otologically and audiologically. Medicines were prescribed, and medication compliance was ensured. The children were followed up after 3 months to judge the status of OM as resolved or recurrent. Data were statistically analyzed to derive the risk of recurrence of OM with effusion (OME) and acute OM by degree of hearing loss, type of tympanogram, age group, and sex.</p><p><strong>Results: </strong>The overall recurrence rate was 26%. The risk of recurrence was higher for OME (odds ratio [OR]=4.33; 95% confidence interval [CI]: 1.90 to 9.83); at AC auditory brainstem peak V responses up to 40 dBnHL (OR=5.20; 95% CI: 2.05 to 13), 50 dBnHL (OR=3.47; 95% CI: 0.5 to 23), and 60 dBnHL (OR=16.09; 95% CI: 4.36 to 1.2); in B (OR= 3.16; 95% CI: 1.36 to 7.33) and C tympanograms (OR=2.83; 95% CI: 0.70 to 11.41); and in the age group of 5-6 years (OR=8, 95% CI: 2.23 to 28). The risk of recurrence of OM did not differ between male and female patients.</p><p><strong>Conclusions: </strong>The rate of recurrence was comparable to or lower than that reported in the pediatric population of other countries. The findings suggest that children with OME, severe pathology, or age of 5-6 years require more attention and frequent monitoring to minimize the risk of recurrence.</p>","PeriodicalId":44886,"journal":{"name":"Journal of Audiology and Otology","volume":"27 3","pages":"139-144"},"PeriodicalIF":1.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ca/26/jao-2022-00542.PMC10352687.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9835318","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":"A Case of Unilateral Otologic Symptoms as Initial Manifestations of Granulomatosis With Polyangiitis.","authors":"Franko Batinović, Marina Krnić Martinić, Merica Glavina Durdov, Davor Sunara","doi":"10.7874/jao.2022.00311","DOIUrl":"https://doi.org/10.7874/jao.2022.00311","url":null,"abstract":"<p><p>Granulomatosis with polyangiitis (GPA) is a chronic and systematic autoimmune condition characterized by granuloma formation and necrotizing vasculitis of small to medium-sized vessels. GPA initially presents itself as respiratory and renal symptoms. Although temporal bone involvement is not uncommon, an otologic disorder is rarely the initial symptom. We present a case of a 36-year-old man who presented with unilateral ear pain, hearing loss, and facial palsy. After a series of diagnostics and temporal bone and chest imaging, he was diagnosed with GPA with multiorgan involvement. Cyclophosphamide and methylprednisolone relieved the patient's ear pain and partially improved his hearing, facial palsy, and overall clinical condition. Although uncommon, systemic GPA may cause initial otologic symptoms and should not be dismissed as a possible cause of an otologic disease resistant to standard therapy.</p>","PeriodicalId":44886,"journal":{"name":"Journal of Audiology and Otology","volume":"27 3","pages":"161-167"},"PeriodicalIF":1.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/9c/ce/jao-2022-00311.PMC10352694.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9833766","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":"Endoscopic Management of Glomus Tympanicum Tumor: Report of Three Cases and Review of the Literature.","authors":"Athanasios Luca Fountarlis, Jiannis Hajiioannou, Vasileios Lachanas, Ioannis Tsitiridis, Athanasios Saratziotis, Aggeliki Alagianni, Charalampos Skoulakis","doi":"10.7874/jao.2022.00276","DOIUrl":"https://doi.org/10.7874/jao.2022.00276","url":null,"abstract":"<p><p>Glomus tympanicum are benign tumors of vascular origin, arising from the neural crest cells and located on promontory. The treatment of choice is surgical excision of the lesion. Traditionally, it is performed under microscopic observation. With the introduction of endoscopes in the field of ear surgeries, an endoscopic approach has also evolved. Herein, we present case reports of three patients diagnosed with glomus tympanicum tumors who were operated on using an endoscopic approach. A review of the literature is also performed. The mass was completely excised in all patients, and there were no signs of recurrence at the follow-up at least a year later. Endoscopic ear surgery is a safe and effective method of managing glomus tympanicum tumors. Its main limitation is the tumor size; however, in most cases, tumors of stages I to II as per the Glasscock-Jackson classification and types A1 to B1 according to the modified Fisch-Mattox classification can be completely removed endoscopically. Careful preoperative selection of patients warrants the best outcomes.</p>","PeriodicalId":44886,"journal":{"name":"Journal of Audiology and Otology","volume":"27 3","pages":"145-152"},"PeriodicalIF":1.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/5e/2c/jao-2022-00276.PMC10352693.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9832991","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}
Seong Hoon Bae, Youngrak Jung, Ji Hye Hur, Jeong Ha Kim, Jae Young Choi
{"title":"Feasibility of Speech Testing Using Wireless Connection in Single-Sided Cochlear Implant Users.","authors":"Seong Hoon Bae, Youngrak Jung, Ji Hye Hur, Jeong Ha Kim, Jae Young Choi","doi":"10.7874/jao.2023.00017","DOIUrl":"https://doi.org/10.7874/jao.2023.00017","url":null,"abstract":"<p><strong>Background and objectives: </strong>The speech tests used to evaluate language performance in patients with bilateral deafness (BiD) and cochlear implant (CI) are problematic if applied to patients with single-sided deafness (SSD) because normal ear hearing should be excluded. Thus, we investigated the feasibility of using wireless connection to evaluate speech intelligibility of the CI ear in patients with SSD. Subjects and.</p><p><strong>Methods: </strong>Patients with BiD and SSD were administered the word recognition scores (WRS) and speech intelligibility tests using an iPadbased wireless connection and conventional methods. To exclude normal side hearing in patients with SSD, masking noise and \"plugged and muffed\" method were used in the WRS and speech intelligibility tests, respectively.</p><p><strong>Results: </strong>In patients with BiD, the WRS and speech intelligibility tests results using wireless connection and conventional methods were similar. In patients with SSD, the WRS using masking noise in the normal hearing ear was similar to that of using wireless connection. However, 3 of 11 patients with SSD showed under-masked results if using the \"plugged and muffed\" method.</p><p><strong>Conclusions: </strong>Speech intelligibility testing using wireless connection is a convenient and reliable method for evaluating CI performance in patients with SSD. The \"plugged and muffed\" method is not recommended for evaluating CI performance in patients with SSD.</p>","PeriodicalId":44886,"journal":{"name":"Journal of Audiology and Otology","volume":"27 3","pages":"133-138"},"PeriodicalIF":1.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/fe/81/jao-2023-00017.PMC10352690.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9835322","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}
Wafaa A Kaf, Samantha Reiter, Amanda Brodeur, Letitia White-Minnis, William Deal
{"title":"Tone-Burst Auditory Brainstem Response and Cortical Potentials in Diagnosis of Syndromic Auditory Neuropathy Spectrum Disorder.","authors":"Wafaa A Kaf, Samantha Reiter, Amanda Brodeur, Letitia White-Minnis, William Deal","doi":"10.7874/jao.2022.00192","DOIUrl":"https://doi.org/10.7874/jao.2022.00192","url":null,"abstract":"<p><p>In this study, we report our findings of comprehensive evaluation in a man with syndromic craniofacial features, cognitive impairment, and hearing loss. The patient underwent psychological and genetic testing and screening for 133 genetic mutations associated with hearing loss, as well as extensive audiological evaluation to assess the auditory pathway between the middle ear and the auditory cortex. Psychological testing showed moderate cognitive impairment. Genetic testing did not reveal a genetic mutation for hearing loss. Audiological evaluation revealed mixed hearing loss and signs of auditory neuropathy spectrum disorder (ANSD) despite absence of otoacoustic emissions and an absent click-evoked auditory brainstem response (ABR) without recording of cochlear microphonics (CM). ANSD was characterized by abnormal speech discrimination, bilateral robust CM to 2,000 Hz tone-burst (TB) ABR, and abnormal left thalamocortical and cortical pathways diagnosed based on auditory middle latency and cortical N1-P2 responses. These behavioral and electrophysiological findings suggest post-synaptic ANSD at the brainstem level. An abnormal left thalamocortical auditory pathway may be attributable to the combined effect of lack of neural synchrony secondary to ANSD mainly on the left and/or brain injury. The findings in this study support the use of TB ABR and auditory cortical potentials in the ANSD test protocol and in patients with craniofacial anomalies.</p>","PeriodicalId":44886,"journal":{"name":"Journal of Audiology and Otology","volume":"27 3","pages":"153-160"},"PeriodicalIF":1.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/2a/8d/jao-2022-00192.PMC10352689.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9832988","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}