Sultan Qaboos University Medical Journal最新文献

{"title":"Complications and Outcomes of Orbital Fracture Repair in Oman.","authors":"Saleh Al Ghailani, Abdulaziz Bakathir, Ahmed Al Ajmi, Shuhra Al Washahi, Tiamour Al Baloshi, Ahmed Al Hashmi","doi":"10.18295/2075-0528.2983","DOIUrl":"https://doi.org/10.18295/2075-0528.2983","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to investigate and analyse the complications and outcomes of orbital fracture repair in Oman.</p><p><strong>Methods: </strong>This multicentre retrospective study included all patients with orbital floor and/or medial wall fractures who underwent orbital reconstruction at four tertiary hospitals in Oman between January 2014 and December 2021. The data collected included demographics, fracture aetiology, surgical approach, reconstruction material, complications and repair outcomes.</p><p><strong>Results: </strong>A total of 41 patients were included in this study. Motor vehicle collisions (MVCs) were the most common cause of orbital fractures, accounting for (53.7%) of the patients. Isolated orbital fractures were encountered in 25 patients, 12 patients had orbital fractures associated with the zygomaticomaxillary complex and 4 had fractures associated with naso-orbital ethmoidal fractures. The transconjunctival approach was the most common surgical method (36.6%), followed by the infraorbital approach (24.4%). Titanium mesh was the primary implant material used in (63.4%) of the cases. The most common complications at 2-weeks to 3-months postoperatively were enophthalmos (17.1%) and residual diplopia (13%). Beyond 3 months postoperatively, complications occurred in 10 patients, resulting in an overall complication rate of (24.4%). Analysis of 24 postoperative computed tomography scans revealed that the ideal implant positioning in the anterior, middle and posterior zones was achieved in (87.5%), (45.8%) and (12.5%) of the cases, respectively.</p><p><strong>Conclusion: </strong>The study findings showed that MVCs were the primary cause of orbital fractures in Oman. The complication rate of orbital reconstruction was low and comparable to that reported in the published literature.</p>","PeriodicalId":22083,"journal":{"name":"Sultan Qaboos University Medical Journal","volume":"26 1","pages":"266-275"},"PeriodicalIF":0.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037667/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147594198","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":"Primary Vaginal Epithelioid Haemangioendothelioma with Pulmonary Metastasis: <i>A case report and review of the literature</i>.","authors":"Anwar Al Shuaili, Huda Kashoob, Zahida Niaz, Nausheen Yaqoob, Khadhra Ahmed J Galaal, Reem Ahmed Al Mazrouai","doi":"10.18295/2075-0528.2982","DOIUrl":"https://doi.org/10.18295/2075-0528.2982","url":null,"abstract":"<p><p>Epithelioid haemangioendothelioma (EHE) is a rare vascular sarcoma of intermediate malignancy. In 2023, a 31-year-old female presented to a tertiary care hospital in Muscat, Oman, with symptoms later diagnosed as primary vaginal EHE. The patient had primary, locally invasive vaginal EHE that subsequently metastasised to the lungs. The patient experienced progression of systemic disease despite chemotherapy and was therefore transitioned to palliative chemotherapy. The clinical, radiological and histopathological findings as well as the diagnostic features that distinguish EHE from its aggressive mimic, epithelioid angiosarcoma, are described in this report. This case highlights the diagnostic challenges, the importance of molecular confirmation and the unpredictable clinical course of this ultra-rare malignancy. To the best of the authors' knowledge, this is the first reported case of primary vaginal EHE.</p>","PeriodicalId":22083,"journal":{"name":"Sultan Qaboos University Medical Journal","volume":"26 1","pages":"259-265"},"PeriodicalIF":0.0,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037670/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147594683","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 Relationship Between Guilt and Self-Blame with Early Maladaptive Schemas in Patients with Cancer: <i>A cross-sectional study</i>.","authors":"Mohadeseh Nikandish, Seyede Salehe Mortazavi, Shahrbanoo Ghahari, Mahdiyeh Salehi, Roghie Bagheri","doi":"10.18295/2075-0528.2981","DOIUrl":"https://doi.org/10.18295/2075-0528.2981","url":null,"abstract":"<p><strong>Objectives: </strong>Cancer is still one of the leading causes of death worldwide and a high percentage of patients with cancer face emotional challenges such as guilt and self-blame. Early maladaptive schemas (EMSs) can make these feelings even stronger. This study aimed to explore how guilt and self-blame relate to EMSs in individuals with cancer, while taking overall psychological distress into account.</p><p><strong>Methods: </strong>This cross-sectional study was conducted at Rasoul-e-Akram and Firoozgar hospitals in Tehran, Iran, from October 2022 to June 2023. Patients with cancer answered the Early Maladaptive Schema Questionnaire-Short Form, Eysenck's Guilt Questionnaire (2007) and the Cognitive Emotion Regulation Questionnaire. Pearson correlation was used to examine the associations and partial correlation to control for psychological distress (Depression Anxiety-Stress Scale-21 [DASS-21] total score).</p><p><strong>Results: </strong>A total of 145 patients with cancer were included in this study; 69.7% were female and most were diagnosed with colon or breast cancer. After accounting for psychological distress measured by DASS-21, the analysis showed a clear link between EMSs and feelings of guilt (r = 0.51; <i>P</i> <0.001) and self-blame (r = 0.314; <i>P</i> <0.001). However, after accounting for psychological distress, the connections between EMSs appeared less intense.</p><p><strong>Conclusions: </strong>These findings suggest that EMSs are closely linked to feelings of guilt and self-blame among patients with cancer, both before and after accounting for psychological distress. The adjustment reduced correlation, which illustrates how EMSs render emotional distress more relatable. These results suggest that schema-focused interventions can reduce these responses, improving psychological well-being and treatment effectiveness.</p>","PeriodicalId":22083,"journal":{"name":"Sultan Qaboos University Medical Journal","volume":"26 1","pages":"251-258"},"PeriodicalIF":0.0,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037673/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147594809","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":"Computed Tomography-Guided Percutaneous Core Needle Biopsy of Lung Lesions: <i>Factors influencing diagnostic yield and complications</i>.","authors":"Raza Sayani, Jayakrishnan B, Rashid Al Sukaiti, Zahida Niaz, Muhammad Sharjeel Usmani, Mustafa Talib Yousif Al Ani, Hasan Al-Sayegh, Subhash Chand Kheruka","doi":"10.18295/2075-0528.2980","DOIUrl":"https://doi.org/10.18295/2075-0528.2980","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to evaluate the diagnostic yield and complications associated with computed tomography (CT)-guided transthoracic core-needle biopsy (CNB) of lung lesions and to identify factors influencing biopsy outcomes.</p><p><strong>Methods: </strong>This retrospective study included patients who underwent CT-guided CNB of lung lesions at Sultan Qaboos Comprehensive Cancer Care & Research Centre, University Medical City, Muscat, Oman, from November 2021 to December 2024. Patients were categorised as either having undiagnosed lung masses/nodules or suspected pulmonary metastases from known malignancies. Biopsies were performed using an 18-gauge coaxial needle, following standard protocols. Diagnostic yield, sample adequacy for molecular analysis and complications were analysed using descriptive statistics and Chi-squared or Fisher's exact tests<i>.</i></p><p><strong>Results: </strong>A total of 105 patients were included. Diagnostic yield of CT-guided CNB was 81.9% (n = 86) with malignancy confirmed in 72.4% of cases. Diagnostic yield significantly correlated with lesion size with increasing accuracy for lesions >2.1 cm compared to those <1 cm (93.9% versus 55%; <i>P</i> = 0.003). Lesion morphology, localisation, positron emission tomography guidance and patient demographics had no significant effects statistically. Complications in 28.8% of patients were largely pneumothorax (21.2%), followed by haemoptysis (8.7%) and haemothorax (1.9%). Smaller lesions (<1 cm) and deeper locations (>5 cm) had higher rates of complications (<i>P</i> = 0.007 and <i>P</i> = 0.080, respectively).</p><p><strong>Conclusion: </strong>CT-guided lung biopsy demonstrated high diagnostic yield with acceptable rates of complications. Lesion depth and size had significant impacts on diagnostic success and occurrence of complications. These results support that CT-guided CNB is a safe and reliable diagnostic procedure for lung lesions, especially when lung lesions are superficially located and solid.</p>","PeriodicalId":22083,"journal":{"name":"Sultan Qaboos University Medical Journal","volume":"26 1","pages":"241-250"},"PeriodicalIF":0.0,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037665/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147594224","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":"Corrigendum Notice: Predictors of Caregiver Burden Among the Caregivers of Bedridden Patients in Muscat, Oman.","authors":"","doi":"10.18295/2075-0528.2979","DOIUrl":"10.18295/2075-0528.2979","url":null,"abstract":"","PeriodicalId":22083,"journal":{"name":"Sultan Qaboos University Medical Journal","volume":"26 1","pages":"240"},"PeriodicalIF":0.0,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037669/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147594389","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":"Incidence and Risk Factors of Recoarctation Following Surgical Repair of Aortic Coarctation in Infants: <i>A retrospective single-centre study</i>.","authors":"Hamid Atiyaq Al Badi, Hamood Al Kindi, Khalid Al Alawi, Abdullah Al Furqani, Laith Al Kindi, Madan Mohan Maddali","doi":"10.18295/2075-0528.2978","DOIUrl":"https://doi.org/10.18295/2075-0528.2978","url":null,"abstract":"<p><strong>Objectives: </strong>The reported incidence and risk factors for aortic recoarctation (reCoA) after surgical repair in infants vary widely. This study aimed to determine the incidence of reCoA and to identify associated risk factors in a cohort of infants. Secondary objectives included assessing parameters associated with reintervention.</p><p><strong>Methods: </strong>This retrospective cohort study was conducted at the National Heart Center, Muscat, Oman, and included all infants who underwent surgical repair of coarctation of the aorta (CoA) from January 2016 to December 2022. Preoperative, intraoperative and postoperative data were collected, including demographics, prostaglandin E2 use, surgical technique and echocardiographic measurements. Recoarctation was defined as requiring surgical or catheter-based reintervention within the follow-up period.</p><p><strong>Results: </strong>A total of 113 infants were included in this study. The incidence of reCoA was 23%. Affected patients were significantly younger (<i>P</i> = 0.002) and had lower body weight (<i>P</i> = 0.012) than those without reCoA. Dysmorphic features were more prevalent in the reCoA group (<i>P</i> = 0.042). End-to-end anastomosis was more frequent in the non-reCoA group, whereas bovine patch augmentation was significantly more common in the reCoA group (<i>P</i> = 0.006). Among patients requiring cardiopulmonary bypass, the reCoA group had significantly shorter aortic cross-clamp times (<i>P</i> = 0.014). Echocardiographic analysis revealed smaller transverse aortic arch (<i>P</i> = 0.019) and aortic isthmus (<i>P</i> = 0.018) measurements in the reCoA group. Multivariate analysis identified low surgical weight (odds ratio [OR] = 0.085, 95% confidence interval [CI]: 0.008-0.898; <i>P</i> = 0.047) and bovine patch use (OR = 5.35, 95% CI: 0.688-119; <i>P</i> = 0.048) as independent predictors.</p><p><strong>Conclusions: </strong>Low body weight at surgery, use of bovine patch augmentation and smaller aortic arch dimensions are significant risk factors for reCoA in infants. These findings emphasise the importance of individualised surgical planning and rigorous postoperative monitoring.</p>","PeriodicalId":22083,"journal":{"name":"Sultan Qaboos University Medical Journal","volume":"26 1","pages":"233-239"},"PeriodicalIF":0.0,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037666/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147594612","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":"Post-Traumatic Pituitary Stalk Transection Syndrome.","authors":"Raya Albusaidi, Asma AlHatmi, Azza Al Shidhani, Eiman Al-Ajmi","doi":"10.18295/2075-0528.2977","DOIUrl":"https://doi.org/10.18295/2075-0528.2977","url":null,"abstract":"","PeriodicalId":22083,"journal":{"name":"Sultan Qaboos University Medical Journal","volume":"26 1","pages":"230-232"},"PeriodicalIF":0.0,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037664/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147594680","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":"Relationship Between Parents' Mental Health and Infant Admission to the Neonatal Intensive Care Unit at Sultan Qaboos University Hospital, Oman.","authors":"Jahad Al Omairi, Abrar Al Balushi, Hana Al Sumri","doi":"10.18295/2075-0528.2976","DOIUrl":"https://doi.org/10.18295/2075-0528.2976","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to assess levels of depression, anxiety and stress among parents of neonatal intensive care unit (NICU)-admitted infants at Sultan Qaboos University Hospital (SQUH) in Muscat, Oman, and to examine their association with parental sociodemographic characteristics and infants' clinical factors.</p><p><strong>Methods: </strong>This cross-sectional study was conducted at SQUH between December 2024 and March 2025 and included parents of NICU-admitted infants. Mental health status was assessed using the validated Arabic version of the Depression, Anxiety and Stress Scale (DASS-42), while sociodemographic and clinical data were collected using structured questionnaires. Descriptive and inferential statistical analyses were performed, with significance set at <i>P</i> ≤0.05.</p><p><strong>Results: </strong>A total of 86 participating parents were included; 44.2% were fathers, 54.7% mothers and 1.2% other caregivers with a mean age of 33.85 ± 5.81 years. Anxiety was most prevalent (23.3%), followed by depression (18.6%) and stress (10.5%). Depression was significantly higher among parents aged 20-29 years (<i>P</i> = 0.048). Prematurity was significantly associated with both depression and stress, while stress was also higher among parents with a history of stillbirth or those whose infants required resuscitation (<i>P</i> <0.05 each). Parents of male infants were significantly more likely to report depression and anxiety (<i>P</i> <0.05 each). While anxiety was more prevalent among parents of multiples compared to those of singletons (<i>P</i> = 0.034).</p><p><strong>Conclusions: </strong>Younger parental age, prematurity, male infant sex, multiple newborn, resuscitation and history of stillbirth were associated with psychological distress, highlighting the need for routine psychological screening and support in NICU.</p>","PeriodicalId":22083,"journal":{"name":"Sultan Qaboos University Medical Journal","volume":"26 1","pages":"221-229"},"PeriodicalIF":0.0,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037668/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147594716","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":"Prevalence and Characteristics of Workplace Violence Towards Healthcare Workers in Primary Healthcare Settings in Muscat, Oman.","authors":"Manar Al Sanaa Ali Al Zeedi, Bishara Hamed Al Maamari, Khadija Saleh AlGhammari, Aisha Rashid Al Mufarrji, Nahid Saif Al Hasni, Rahma Yaqoob Al Shuhaimi","doi":"10.18295/2075-0528.2975","DOIUrl":"https://doi.org/10.18295/2075-0528.2975","url":null,"abstract":"<p><strong>Objectives: </strong>Workplace violence (WPV) is a growing occupational health concern, with healthcare workers (HCWs) particularly at risk. While high rates of WPV towards HCWs have been reported in emergency and psychiatry settings in Oman, little is known about its prevalence in primary care. This study aimed to assess the prevalence and characteristics of WPV towards HCWs in primary care settings in Muscat, Oman.</p><p><strong>Methods: </strong>This cross-sectional study was conducted between November and December 2024 in Muscat's primary health centres using the validated Workplace Violence in the Health Sector Country Questionnaire. Descriptive statistics and inferential analyses (Chi-square and logistic regression) were used to assess prevalence and associated factors of WPV.</p><p><strong>Results: </strong>A total of 218 participants were included (response rate = 74.7%). The overall prevalence of WPV was 64.2% (95% confidence interval: 57.8-70.6%) with verbal abuse and bullying/mobbing being the most common forms. Victims were most often nurses, followed by physicians, while patients were the primary perpetrators. Significant associations were found between violence type and perpetrator identity, victim response, perceived preventability and reasons for not reporting. Despite existing policies, many participants lacked training or awareness of reporting procedures. Most incidents were not investigated and had no consequences for the perpetrators.</p><p><strong>Conclusion: </strong>WPV is a major issue for primary HCWs in Muscat, Oman. Gaps in awareness, training and institutional response highlight the need for stronger prevention, accountability and support measures to protect HCWs and ensure quality patient care.</p>","PeriodicalId":22083,"journal":{"name":"Sultan Qaboos University Medical Journal","volume":"26 1","pages":"212-220"},"PeriodicalIF":0.0,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037671/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147594664","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":"Rate and Characteristics of Frequent Attenders at Primary Healthcare Centres in Muscat Governorate, Oman: <i>A cross-sectional study</i>.","authors":"Manar Al Sanaa Ali AlZeedi, Najlaa Jaafar Mohammed, Fatma Al Hadhrami, Hadya Al Lawati, Muna Aal Talib, Rahma Al Riyami, Rahma Al Shuhaimi, Wiam Al Tuqi","doi":"10.18295/2075-0528.2974","DOIUrl":"https://doi.org/10.18295/2075-0528.2974","url":null,"abstract":"<p><strong>Objectives: </strong>Frequent attenders (FAs) are patients who use primary healthcare centre (PHC) services at disproportionately high rates which puts a strain on health systems and affects the quality of care. This study aimed to determine the prevalence of FAs in PHCs in Muscat Governorate, Oman, and to identify their demographic, socioeconomic and clinical characteristics.</p><p><strong>Methods: </strong>This cross-sectional study was conducted across 10 randomly selected PHCs in Muscat from January to December 2024. Data were collected retrospectively from electronic medical records for 2023. FAs were defined as individuals with 10 or more visits per year. Descriptive statistics and multivariate Poisson regression were used to identify factors associated with frequent attendance.</p><p><strong>Results: </strong>A total of 83,749 visits by 41,017 adult patients were analysed. FAs constituted 1.1% of patients (95% confidence interval: 0.95-1.15%) and accounted for 6.9% of all visits. The mean number of visits among FAs was 13.4 ± 5.5 per year, with 8.6% meeting the criteria for extremely frequent attendance (20 or more visits per year). Persistence in frequent attendance was observed in 26.2% of FAs across two consecutive years. FA was significantly associated with being female, unmarried, unemployed, having a low education level, chronic disease (<i>P</i> = 0.002) and mental illness (<i>P</i> <0.001), with mental illness having the strongest effect.</p><p><strong>Conclusions: </strong>FA in Muscat's PHCs is influenced by medical, behavioural and sociodemographic factors. Early identification of FAs and targeted interventions, such as integrated chronic disease and mental health services, administrative reforms and patient education, are essential to improve care quality and reduce unnecessary utilization.</p>","PeriodicalId":22083,"journal":{"name":"Sultan Qaboos University Medical Journal","volume":"26 1","pages":"203-211"},"PeriodicalIF":0.0,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037672/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147594760","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}