Mymensingh medical journal : MMJ最新文献

{"title":"Endometrial Thickness as a Predictor of Endometrial Malignancy among the Women Presenting with Abnormal Uterine Bleeding.","authors":"N S Komola, T T Mirza, S Dhar, F Sharmin, R Akhter, P D Bakshi, S Choudhury, M A Rahman","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Abnormal uterine bleeding (AUB) is the most common and frequent presenting complaint in Gynaecology in all age group especially in perimenopausal and postmenopausal women. The spectrum of AUB in women of our country includes a wide varieties of organic pathology. The objective of this study was to assess the role of endometrial thickness as a predictor of endometrial malignancy among the women presenting with AUB. This cross-sectional descriptive type of observational study was conducted among 122 women of perimenopausal (40-50 years) and 87 women of postmenopausal (>50 years) age group presenting with AUB in the Obstetrics and Gynaecology department of Mymensingh Medical College Hospital, Bangladesh from February 2020 to August 2021. These patients were subjected to a detailed history and meticulous general, systemic and local examination. The relevant investigations like Transvaginal Sonography (TVS) followed by endometrial biopsy by dilatation and curettage were done in all study participants. Most of the women were in the age group 41-45 years in perimenopause and 51-55 years in postmenopause. Mean±SD was 45.8±4.1 years in perimenopause and 56.3±6.4 years in postmenopause. There was statistical significance in developing endometrial malignancy regarding risk factors of nulliparity, Hypertention (HTN), Diabetes mellitus (DM) and hormone intake between perimenopause and postmenopause. Endometrial thickness was measured in perimenopause and postmenopause. Mean±SD of Endometrial thickness (ET) in perimenopause and postmenopause was 11.3±4.4mm and 7.2±6.3mm with statistical significance (p<0.001). Sensitivity, specificity, Positive predictive value (PPV), Negative predictive value (NPV) and accuracy of TVS were 85.5%, 67.4%, 81.2%, 73.8% and 78.7% in perimenopause and 85.9%, 20%, 89%, 75% & 83.9% in postmenopause. Cut off limit of ET in detection of endometrial malignancy was 18.5mm with sensitivity 74.8% and specificity 63.6% in perimenopause and 12.2mm with sensitivity 81.0% and specificity 65.8% in postmenopausal women. Women with AUB, endometrial malignancy should be suspected when endometrial thickness on TVS >18.5mm and >12.2mm in perimenopause and postmenopausal age group respectively. TVS has high sensitivity in detection of endometrial malignancy both in perimenopausal and postmenopausal women with AUB and TVS is a reliable, noninvasive method.</p>","PeriodicalId":94148,"journal":{"name":"Mymensingh medical journal : MMJ","volume":"33 3","pages":"677-684"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474043","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":"Impact of Socio-demographic Variables, Surgical Techniques and Risk Factors on the Outcome of Coronary Artery Bypass Graft Surgery among Bangladeshi Population.","authors":"R Ranjan, D Adhikary, S M B Sunny, A Seedher, N Imtiaz, R Islam, A B Adhikary","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This study was intended to evaluate the pathological outcome of cardiopulmonary bypass whilst considering socio-demographic variables and surgical technique on early postoperative results following coronary artery bypass graft (CABG) surgery in patients at a tertiary level hospital in Bangladesh. This observational study evaluated a total of 880 patients with ischemic heart disease in Bangabandhu Sheikh Mujib Medical University, Bangladesh from 2011 to 2019 who were undergoing an isolated CABG surgery. In this current study, the population divided into two groups- Group A: Off-pump CABG (n=440) and Group B: On-pump CABG (n=440). The mean age of the patients was 55.25±5.0 years in off-pump and 50.75±5.2 years in the on-pump group. Risk factors, including smoking, hypertension, and hyperlipidemia, were predominant in both study groups. Total operative time was notably higher in the on-pump CABG group. However, grafting time was more in the off-pump CABG procedures. Postoperative neurological deficits were higher amongst the on-pump CABG population. The mean time of mechanical ventilation, intensive care unit (ICU) stay, total hospital stay, and mortality was notably higher in the on-pump CABG group. Moreover, the number of mortalities in on-pump CABG patients was primarily due to the low output syndrome, failure of weaning from cardiopulmonary bypass (CPB) and sudden cardiac arrest. Off-pump CABG is now more acceptable due to its potentiality to avoid CPB induced complications, aortic cannulation, and cross-clamping. Cardiac arrest in on-pump CABG induces global ischemia and reperfusion injury to the cardiac muscle. Besides, the Off-pump CABG provides a conspicuous survival advantage compared to the on-pump CABG, in association with a notable reduction in postoperative morbidity and mortality.</p>","PeriodicalId":94148,"journal":{"name":"Mymensingh medical journal : MMJ","volume":"33 3","pages":"785-793"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474060","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":"Gold Standard yet Inconspicuous- Our Experience of Conventional Haemorrhoid Surgeries in a Peripheral Free of Cost Hospital of Bangladesh.","authors":"H R Sazal, S Hasan","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Recent advancement in surgical treatment of haemorrhoidal disease is not accessible by low socio-economic group of patient in a peripheral hospital of an underdeveloped country, where we aimed to evaluate the outcome of conventional surgeries. This descriptive, prospective, observational study was performed from diagnosis of haemorrhoidal disease to surgical intervention and followed up 12 months post operatively. Clinico-pathological data and outcome in the form of complications and recurrence within follow-up period was studied. Total 64 adult patients with mean age 38.6 years and male female ratio 1.7:1 were included in this study. Mean duration of symptoms was 13 months, reflects late presentation. Two (2) piles mass was seen most frequent in 36(56.3%) cases and most of the patients i.e. 44(68.8%) had haemorrhoids only on primary sites (3, 7 and 11 o'clock) of anal canal, but 18(28.1%) had mixed primary and secondary position of haemorrhoids. Similarly among those who had more than one haemorrhoid, grade 4 was commonest 35(53.1%) followed by only grade 3 in 15(23.4%) cases but mixed grade 3 and 4 was seen in 10(15.6%) patient. Complication less recovery was seen in 56(87.5%) cases, where delayed wound healing and pain was reported in 2(3.6%) patient each, followed by 1(1.6%) each reported urinary retention, anal sepsis, primary bleeding and reactionary bleeding. Mean hospital stay was 4 days. Conventional surgeries are equally efficacious and cost effective option for management of operable haemorrhoidal disease at any setup.</p>","PeriodicalId":94148,"journal":{"name":"Mymensingh medical journal : MMJ","volume":"33 3","pages":"832-839"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474059","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":"Indication and Post-operative Complication of Primary Caesarean Section in Multiparous Women in A Tertiary Level Hospital.","authors":"R Akhter, T Latif, H Yasmin, S Dhar, U R Jahan, N S Komola, P Das, P Roy, S Choudhury, A Begum","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The spectrum of indications for primary caesarean section changes with advancing parity. As parity advances more cesarean section are done for maternal rather than fetal indications. The objective of this study was to determine the indications and complications of caesarean section in multiparous women with history of previous vaginal delivery. This cross-sectional descriptive observational study was conducted in Mymensingh Medical College Hospital from January 2019 to June 2019 among 100 purposively selected multiparous women who underwent primary caesarean section. A well-designed, semi-structured questionnaire was used to collect data by face-to-face interview, clinical examinations and laboratory investigations. Data analysis was conducted in SPSS 20.0 version. Majority (74.0%) of the women in this study were in the age group 21-30 years with mean age of 26.3±5.76 years. Majority of the patients were of second gravida (42.0%) followed by third gravida (33.0%). The highest gravida in this study was 6th. Most of the patients were of para 1(44.0%). Highest para in this study was para 5. The most common indication of caesarean section in this study was foetal distress (26.0%). The next common indications were cephalo-pelvic disproportion (22.0%), antepartum haemorrhage (13.0%), mal-presentaion or mal-position (16.0%). Other causes were PROM (8.0%), prolonged labour (6.0%), cord prolapse (2.0%), post-dated pregnancy (4.0%), severe pre-eclampsia (2.0%) and secondary subfertility (1.0%). There was no case of maternal mortality in this study but 15 mothers suffered from various post-operative complications like wound infection (4.0%), UTI (4.0%), puerperal pyrexia (3.0%), postpartum haemorrhage (3.0%) and paralytic ileus (1.0%). Among the babies delivered 97 were live births. Among the 97 live births 11(11.34%) were preterm babies. Among the babies delivered majority (85.0%) was with good APGAR score (7-10). In conclusion it can say that a multiparous women in labour requires the same attention as that of primigravida. A parous women needs good obstetric care to improve maternal and neonatal outcome and still keeping caesarean section to a lower rate.</p>","PeriodicalId":94148,"journal":{"name":"Mymensingh medical journal : MMJ","volume":"33 3","pages":"716-723"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474061","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":"Subarachnoid Hemorrhage as a Presentation of Hemophilia: A Case Report.","authors":"M Saiduzzaman, M T Hasan, E Mia","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A young boy presented with features of non-traumatic Subarachnoid hemorrhage (SAH) with hematemesis and melaena. He has had past history of prolonged bleeding following cut injury even requiring blood transfusion after circumcision. On examination, he was found confused, severely anemic, with presence of neck rigidity and painful swelling of right knee joint. But no positive family history was found. Non-contrast CT scan showed SAH. Cerebral angiography showed no aneurysm but knee joint had features of hemarthrosis. He was resuscitated and hemophilia was diagnosed on the basis of clinical suspicion of clotting factor assay. Specific treatment started in collaboration with Department of Hematology. This is a rare presentation of hemophilia as well as very uncommon cause of non-traumatic non-aneurysmal SAH.</p>","PeriodicalId":94148,"journal":{"name":"Mymensingh medical journal : MMJ","volume":"33 3","pages":"929-931"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474148","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":"Calculated Fracture Risk among Hypertensive and Non-hypertensive Osteoporotic Women.","authors":"A Mahjabin, M T Islam, M A B Siddiq, M Z Islam, M A Yusuf, M Akhiruzzaman, M A Rahman","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Vertebral and Hip fractures are the commonly encountered in low bone mass condition termed as osteoporosis. Bone mass and structure also affected by hypertension leading to increased susceptibility to fractures. This comparative cross-sectional study was conducted at two tertiary care centers in Dhaka metropolis from 1st January 2017 to 31st December 2017 under the department of Community Medicine, National Institute of Preventive and Social Medicine (NIPSOM) to assess whether HTN is linked with higher OP fracture risk. In this study 54 hypertensive and 34 non-hypertensive osteoporotic female patients were involved. After face to face interview data were collected by using semi-structured questionnaire and checklist. Online assessment of fracture risk probability was done among the two groups by Fracture Risk Assessment Tool (FRAX) and statistical analysis was performed by Statistical Packages for Social Sciences (SPSS-23.0). In this study it is found that the mean ages were 61.94±9.362 years and 59.18±11.269 years for hypertensive and non-hypertensive patients respectively. Most of the patients with hypertensive (96.3%) and non-hypertensive (82.4%) were housewives. Mean duration of hypertension in osteoporotic women was 6.41±4.049 years while mean duration of osteoporosis was 8.80±5.022 years and 7.53±5.920 years in hypertensive and non-hypertensive patients respectively. The difference in risk of major osteoporotic fractures (MOF) by age was significantly (Χ², p<0.05) higher among patients aged 60-79 years and remarkably higher in hypertensive patients. In hypertensive patients though the risk of MOF by hypertension was relatively higher but it was not significant statistically (Χ², p>0.05). However the risk of hip fracture (HF) by hypertension was relatively higher among hypertensive patients and it was significant statistically (Χ², p<0.05). This reflects that the risk of hip fracture is higher significantly in hypertensive patients.</p>","PeriodicalId":94148,"journal":{"name":"Mymensingh medical journal : MMJ","volume":"33 3","pages":"882-887"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474109","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":"A Comparative Study of Pulmonary Function Parameters in Construction Workers and Normal Healthy Volunteers.","authors":"G A Birajdar, N M Bhosale, K H Buge, S M Hulke","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Construction work is common all over the world. Construction workers are exposed to various physical, chemical, biological and ergonomic hazards that may directly affect respiratory health. Aim of the study was to assess construction workers' pulmonary function and compare pulmonary function with healthy volunteers. This cross-sectional study was carried out in the Department of Physiology ARMCH & RC, Solapur, India from March 2022 to March 2023 on construction workers (n=25) and healthy subjects (n=25). Pulmonary function assessment in both groups was done using a Spiro Excel machine spirometer. The comparison was made between both groups for frequency of respiratory symptoms, spirometry pattern, and spirometry values. Statistical software used unpaired t-test and chi-square test. A normal pattern was observed in 40.0% of healthy subjects compared to 72.0% of construction workers (p<0.05). Restrictive and mixed patterns were evident in 4.0% and 1.0%, respectively, in healthy volunteers compared to 11.0% and 3.0% in construction workers (p<0.05). Statistical difference was seen in all lung function parameters, i.e. FVC, FEV₁, FEV₁/FVC%, FEF 25.0-75.0%, PEFR except MVV between both groups. In conclusion the construction workers are at risk of respiratory function derangement. This derangement is in the form of increased frequency of respiratory symptoms, restrictive & mixed patterns and decreased spirometry values of various parameters.</p>","PeriodicalId":94148,"journal":{"name":"Mymensingh medical journal : MMJ","volume":"33 3","pages":"908-913"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474099","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":"Demographic Characteristics, Clinical Profile, Outcome and Risk Factors of Covid-19 among Health Care Workers in a COVID Dedicated Hospital.","authors":"R T Anne, M Mutanabbi, F Noman, F Hasnat, S S Shova, T Sharmin","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The extremely contagious global outbreak of the novel Coronavirus disease 2019 (Covid-19) caused by Severe acute respiratory syndrome coronavirus-2(SARS- CoV-2) is causing concern worldwide since its emergence. Healthcare workers (HCWs) are more susceptible for acquiring Covid-19 due to direct or indirect exposure to Covid-19 patients. Therefore, it is important to investigate demographic, clinical characteristics and outcome of affected persons and possible source of infection with exposure details. This study aimed at determining the demographic and clinical profile, outcome and possible risk factors for infection among the HCWs at Kurmitola General Hospital (KGH), Bangladesh. This retrospective observational study was done among the SARS-CoV-2 positive HCWs of Kurmitola General Hospital (KGH) from April 2020 to January 2021. Out of total 1323 HCWs, 180(13.9%) cases were detected Covid-19 positive. Among the infected HCWs, 76(42.2%) were male and 104(57.8%) were female. The mean age was 32.8±6.95 years. Eighty nine (89) were nurses (49.4%) and 67 were physicians (37.2%). Among them, 23(13.0%) had no definite symptoms. Mild symptoms had in 137(76.11%) and 40(22.22%) had moderate symptoms. Most common symptoms were fever 112(62.0%), weakness 108(60.0%), cough 102(57.0%) and myalgia 54(30.0%). Pre-existing comorbidities had 43(24.0%). Bronchial asthma 27(15.0%), HTN 24(13.0%) and DM 21(12.0%) were the most prevalent comorbidities. All completely were recovered ultimately. Fatigue 52(28.89%), shortness of breath 15(8.3%), cough 13(7.2%) were the most common long-term complications. Among them, 53(29.0%) pointed toward lack of maintaining a hygienicatmosphere, as their possible cause of being infected, whereas 37(21.0%) could not identify the cause. Maximum HCWs, 170 cases (94.44%) used PPE during their duty. Adequate training get 26(14.44%) on PPE use and Infection prevention and control (IPC). This study concludes almost 1.4 in 10 HCWs at KGH were infected with SARS-CoV-2 while working in hospital during the Covid-19 pandemic. Affected HCWs have relatively female predominance with younger age, milder symptoms, and less underlying diseases in this study. Fatigue and shortness of breath are most common long-term complications, which hampers their working ability. Most of them did not get any training on PPE use and IPC.</p>","PeriodicalId":94148,"journal":{"name":"Mymensingh medical journal : MMJ","volume":"33 3","pages":"758-765"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474038","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":"Endovascular Aneurysm Repair for Infrarenal Abdominal Aortic Aneurysm: New Horizon in Endovascular Surgery in Bangladesh.","authors":"G M M Hossain, N C Mandal, N K Dey, S R Sarker, R Hasan, N C Saha, M R Sarker, A K M Huque, M Rahman, S Ferdous","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Abdominal aortic aneurysm remains mostly asymptomatic. It is usually detected incidentally with imaging studies. Here we present a 55 years old hypertensive, non smoker, non diabetic, male patient who was diagnosed as a case of infrarenal abdominal aortic aneurysm. He was treated by endovascular means using endograft without laparatomy. Endografts were deployed through bilateral femoral artery cut down technique under general anesthesia. Completion angiogram following this endovascular aneurysm repair (EVAR) technique revealed good technical success with no endoleak. This hybrid procedure was performed in a cathlab having surgical instruments in hand. Three years after the procedure, patient is doing well.</p>","PeriodicalId":94148,"journal":{"name":"Mymensingh medical journal : MMJ","volume":"33 3","pages":"936-940"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474044","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":"Serum Lipid Profile and Its Association with Newly Diagnosed Hypertensive Patients in Bangladesh.","authors":"M M Rahman, M Akhter, M A Rahman, T Tabassum, M R Hasan","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Clustering of hypertension, dyslipidemia, and other metabolic abnormalities is increasing the burden of non-communicable diseases, especially cardiovascular disease. The objective of this study was to explore the pattern of lipid profiles in newly diagnosed hypertensive patients attending Shaheed Mansur Ali Medical College, Dhaka, Bangladesh from August 2020 to December 2020. A total of 59 newly diagnosed hypertensive patients were studied through a cross-sectional approach. Prior to the study, ethical clearance was ensured, and informed written consent was obtained. A pre-structured questionnaire was used for data collection. Collected data were analyzed using SPSS 24.0 version. Slight male preponderance (54.2%) was observed along with an average age of 45 years among studied patients. Raised levels of total cholesterol (TC), triglyceride (TG), and low-density lipoprotein (LDL) were observed in 91.5%, 98.3%, and 88.1% of patients accordingly. Low level of high-density lipoprotein (HDL) was observed in 47.5% of the patients. Mean TC, TG, LDL, HDL were 286.11±347.37, 311.74±122.76, 163.27±33.67 and 38.29±6.66 mg/dl, respectively. Almost all patients were obese. There is no correlation between the serum lipid profile and blood pressure of the patients. Dyslipidemia was highly prevalent among newly diagnosed hypertensive patients.</p>","PeriodicalId":94148,"journal":{"name":"Mymensingh medical journal : MMJ","volume":"33 3","pages":"848-855"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474145","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}