Bangladesh Medical Journal最新文献

{"title":"Bone Mineral Density and Body Mass Index in Postmenopausal Women","authors":"K. Nahar, M. Bhuiyan, Azzad Mia, Arshad Hossain, Humayra Tasnim","doi":"10.3329/bmj.v49i3.56077","DOIUrl":"https://doi.org/10.3329/bmj.v49i3.56077","url":null,"abstract":"Osteoporosis is a typical medical issue that overwhelmingly influences postmenopausal women. A bone density test is the only test that can diagnose osteoporosis before a broken bone occurs. The aims of this study was to find out the relationship between bone mineral density (BMD) and body mass index (BMI) in postmenopausal females. This cross sectional descriptive study was carried out in the Institute of Nuclear Medicine and Allied Sciences (INMAS), Sylhet. Study subjects comprised of 117 postmenopausal women between ages 45 to 85 years, with a mean age of 60.8 ± 9.2 years, who underwent BMD scan from January 2018 to June 2019. Duration of the study was 5 months ( march 2019 to august 2019). BMD was measured by the MedilinkMedix DR system. Findings of BMD of right femur showed osteopenia and osteoporosis (low BMD) in most of the women with under weight (81.0%) about one third  (32.3%) of normal body weight and few (16.7%) of them over weight. Contrarily in left femur, low BMD was found in 08 (80.0%), 25 (40.3%) and 6 (16.7%) among underweight, normal, overweight patients respectively.   According to BMI compare to the lumbar spine, low BMD was found in 48 (77.4%), 10 (100 %), 20 (55.6%), 03 (33.3%) among normal, underweight, overweight, and obese patients respectively. Relationship among BMD and BMI was found statistically significant in the both femurs (p < 0.001) and lumbar spine (p = 0.02). Low BMD was more severe in the 65-74 years’ age group in both femurs 65.4% and 65-85 years’ age group in lumbar spine 84.6% compare to other groups. The findings of this study reveal that low BMI and aging are associated with bone loss. Routine BMD checking in postmenopausal women might be important to initiate an early clinical intervention for osteoporosis. \u0000Bangladesh Med J. 2020 Sept; 49(3) : 22-28","PeriodicalId":8711,"journal":{"name":"Bangladesh Medical Journal","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84894998","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":"Clinical Profile and Outcome of Children with Congenital Heart Disease in First Year of Life","authors":"R. Rana, Soofia Khatoon, M. Ahmed, Md. Rafiqul Islam, Shahreen Kabir, Nanda Lal Das, Zakia Nahar, -. Jebunnesa, M. Jobayer","doi":"10.3329/bmj.v49i3.56076","DOIUrl":"https://doi.org/10.3329/bmj.v49i3.56076","url":null,"abstract":"Diagnosis of congenital heart disease (CHD) which is a structural abnormality of the heart or intra thoracic great vessels in the earliest possible time is very important. Identifying the various modes of presentation, early referral and appropriate intervention can save lives and reduce risk of complications. The objectives of this study were to determine the clinical profile, complication and immediate outcome of children with congenital heart disease in first year of life. This cross-sectional observational study was conducted from October 2011 to March 2012 among 50 children from zero to one year of age who was diagnosed as CHD by echocardiography admitted in Department of Paediatrics of ShaheedSuhrawardy Medical College, Dhaka and Department of Paediatric Cardiology of National Institute of Cardiovascular Diseases, Dhaka, Bangladesh. Among 50 infants acyanotic CHD was detected in 70% and cyanotic in 30% infants. Major structural defects were venticularseptal defect 34%, patent ductusarteriosus 30%, tetralogy of fallot’s 14%, transposition of great arteries 12%, atrial septal defect 6%. Presenting features were cough 82%, dyspnea 80%, poor weight gain 70%, feeding difficulty 68% and fever 58%. Frequently observed complications were failure to thrive, pulmonary hypertension and heart failure. Among the outcome of CHD 8% cases closed spontaneously, case fatality rate was 8% and the rest were advised accordingly for surgery, intervention and medical management among which 14% had device closure within the study period. High index of suspicion, early diagnosis, close monitoring and timely intervention can reduce complication of CHD. \u0000Bangladesh Med J. 2020 Sept; 49(3) : 17-21","PeriodicalId":8711,"journal":{"name":"Bangladesh Medical Journal","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80694539","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":"Comparison of the Ultrasonic Evaluation of Bi-Parietal Diameter and Femoral Length in 2nd and 3rd Trimester to Estimate the Gestational Age","authors":"Farjana Akther, Borhan Uddin, Ms Ahmed, Kazi Nazma Begum, N. Akhter, Shiren Sultana, M. A. Wahab, T. A. Nila, Md Mahbubur Rahman Shaheen, R. B. Habib","doi":"10.3329/bmj.v49i3.56080","DOIUrl":"https://doi.org/10.3329/bmj.v49i3.56080","url":null,"abstract":"During the gestational period, fetal biometrics are assessed through ultrasonography to observe the growth of the fetus. This study observed the corresponding of gestational age those were measured by two of the fetal diameters; gestational age were calculated from history of last menstrual period (LMP), in the last two trimesters. This descriptive type of observational study was carried out in the Department of Radiology and Imaging of Dhaka Medical College and Hospital, during the period of July, 2004 to June, 2005. Here 291 single-ton, non-complicated pregnant women of LMP were selected purposively from valid record. Bi-parietal diameter (BPD) and femoral length (FL) estimated through ultrasonography. These two parameters compared with the gestational age in second and third trimester. The study found that, before 36th week, the BPD based gestational age varied 2 to 3 days from LMP based gestational age and after that, the variation was 1 to 4 weeks. In case of FL, the ultrasonic measurement found to be 2 to 4 days backward in the second trimester and 2 to 3 days advance in the last trimester in contrast to the LMP based gestational age. In the second trimester, it has been found that, BPD has been the superior predictor of the gestational age than the FL with the correlation coefficient of 0.999 in case of BPD and 0.998 in case of FL when correlated with LMP based gestational age. Although, in third trimester, FL versus BPD predicted the gestational age with a correlation coefficient of 0.998 versus 0.978 respectively, when correlated with gestational age based on the history of LMP. This study has observed that, later in pregnancy, FL has the better predictability over BPD to determine the gestational age. \u0000Bangladesh Med J. 2020 Sept; 49(3) : 43-48","PeriodicalId":8711,"journal":{"name":"Bangladesh Medical Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89824624","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":"Emergence of Carbapenemase Encoding Genes in Proteus Species in Tertiary Care Hospital of Bangladesh","authors":"S. Afroz, S. Shamsuzzaman, N. Begum, Moonmoon Shormin, N. Shazzad, A. Shahin","doi":"10.3329/bmj.v49i2.55812","DOIUrl":"https://doi.org/10.3329/bmj.v49i2.55812","url":null,"abstract":"Along with different carbapenemase encoding genes, in recent year class D OXA enzymes are documented in Proteus spp which are not common in Enterobacteriaceae. The dissemination of plasmids, transposons and integrons among bacteria and species playing roles for this dissemination. So, this study was designed to observe the emergence and distribution of different classes of carbapenemase encoding genes among imipenem resistant Proteus spp. isolated from tertiary care hospital in Bangladesh. Total 15 imipenem resistant Proteus isolates were included in this study, which were collected from wound swab, pus, urine and blood samples. Identification was done by culture and biochemical test and antibiotic susceptibility test was done by disc diffusion method. MIC of imipenem (g/ml) was done among imipenem resistant P. mirabilis by agar dilution method. blaKPC, blaNDM-1, blaVIM, blaIMP, blaOXA-48 like, blaOXA-23 like, blaOXA-51 like, blaOXA-58 like carbapenemase encoding genes were detected among imipenem resistant Proteus spp. by PCR and sequencing of blaOXA-48 like, blaOXA-51 like gene done by capillary method to compare the sequences with the same gene, available in gene bank. Among 15 imipenem resistant isolates blaNDM-1 (26.67%), blaKPC (20%), blaVIM (20%), blaOXA-484 (20%) were predominant carbapenemase encoding genes followed by blaOXA-66(6.67%). This study finds that blaOXA-484 gene and blaOXA-66 class D carbapenemase encoding genes are emerging in Proteus spp. and may play a contributing factor in developing carbapenem resistance.\u0000Bangladesh Med J. 2020 May; 49(2) : 1-8","PeriodicalId":8711,"journal":{"name":"Bangladesh Medical Journal","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88751296","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":"Risk Factors and Clinical Profile of Respiratory Distress in Newborn: A Hospital Based Study in Bangladesh Army","authors":"Biplob Kumar Raha, Julfikkar Alam, Abdul Quddus Bhuiyan","doi":"10.3329/BMJ.V48I3.51793","DOIUrl":"https://doi.org/10.3329/BMJ.V48I3.51793","url":null,"abstract":"Neonatal respiratory distress (NRD) is a main cause of neonatal morbidity and mortality in developing countries. Early detection of its risk factors and early treatment of its causes are major challenges. There are many causes of respiratory distress, among them, transient tachypnea of newborn (TTN), respiratory distress syndrome (RDS) and perinatal asphyxia are commonest causes. Timely and appropriate therapy is essential to prevent ongoing injury and improve outcome. The aim of this study was to determine the risk factors and to identify the causes of respiratory distress in neonatal intensive care unit (NICU) in Combined Military hospital (CMH) Sylhet and to observe the hospital outcome of these babies. Descriptive type of cross- sectional study was conducted in CMH Sylhet over a period of one year from April 2018 to March 2019. During the study period a total of 287 live newborns were found and included as study subjects to observe for development of respiratory distress. The overall prevalence of respiratory distress was 19.2%. There was male predominance (63.6%) and more than two third (71.1%) were born by cesarean section. Prematurity (38.2%), low birth weight (52.7%), male gender (63.6%), APGAR at 1 min <7 (10.9%), caesarean delivery (76.4%), less antenatal care visit (52.7%), more than 4 pervaginal examinations 49.1%, acute fetal distress 43.6% and gestational diabetes mellitus 34.5% were the most common risk factors for development of NRD. The main causes were transient tachypnea of newborn 47.3%, respiratory distress syndrome 29.1% and perinatal asphyxia 10.9%. All babies required high flow oxygen initially, subsequently Bubble Continuous Positive Airway Pressure (CPAP) and mechanical ventilation was required in 14.5% and 1(1.8%) cases respectively. Mortality was 1.8% in neonates with respiratory distress syndrome with pneumothorax with septicaemia requiring mechanical ventilation. NRD is a frequent emergency and causes high morbidity and mortality. Risk factors like prematurity, low birth weight, male gender, APGAR at 1 min <7, caesarean delivery, less antenatal care visit, more than 4 pervaginal examinations, acute fetal distress and gestational diabetes mellitus were associated with respiratory distress in newborns. Majority of cases are due to TTN followed by respiratory distress syndrome and perinatal asphyxia. Mortality was in RDS mainly related to pneumothorax with septicaemia. Better obstetrical care and timely intervention may improve the outcome of newborn respiratory distress. \u0000Bangladesh Med J. 2019 Sep; 48 (3): 21-27","PeriodicalId":8711,"journal":{"name":"Bangladesh Medical Journal","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85454901","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":"Cardiac Cephalgia: Angina in the Head","authors":"Mahbubur Rahman, Aminur Razzaque, Iftikher Alam, A. Iqbal, Golam Rahman Mallick, S. Munshi, Wareshuzzaman, Akif Hasan","doi":"10.3329/BMJ.V48I3.51798","DOIUrl":"https://doi.org/10.3329/BMJ.V48I3.51798","url":null,"abstract":"Cardiac cephalgia is a migraine like headache that occurs during episodes of myocardial ischaemia. Although most of the patients presenting with ischaemic heart disease have chest pain, there are other rare presenting symptoms like cardiac cephalgia. Headache can be the only presentation of coronary artery disease. We report a case of a 57 years-old man, Presenting with only headache during brisk walking, Exercise Tolerance Test (ETT) was positive for Electrocardiograph (ECG) evidence of provocable myocardial ischemia, who latter was diagnosed as double vessel coronary artery diseaseon Coronary Angiogram (CAG). As the patient preferred remaining without revascularization, he was put onto optimum medical management for ischaemic heart disease. A follow up visit after one month revealed, marked improvement of the headache with anti anginal medications. Early evaluation and diagnosis of the headache symptom should be done because treatment with anti-migraine drugs may deteriorate headache and undermine the diagnosis of coronary artery disease. \u0000Bangladesh Med J. 2019 Sep; 48 (3): 46-49","PeriodicalId":8711,"journal":{"name":"Bangladesh Medical Journal","volume":"24 1","pages":"46-49"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78089841","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":"Obituary News September-2019 Vol. 48(3)","authors":"K. Halim","doi":"10.3329/BMJ.V48I3.51799","DOIUrl":"https://doi.org/10.3329/BMJ.V48I3.51799","url":null,"abstract":"Abstract not available \u0000Bangladesh Med J. 2019 Sep; 48 (3): 50","PeriodicalId":8711,"journal":{"name":"Bangladesh Medical Journal","volume":"125 26 1","pages":"50"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79877769","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":"Efficacy of Different Doses of Dexmedetomidine in Blood Pressure to Laryngoscopy in Controlled Hypertensive Patient: A Randomized Control Trial","authors":"Rumana Afroz, Rabeya Begum, S. S. Alam, Nurul Islam, Mahin Muntakim, Zunaid, Jabed","doi":"10.3329/BMJ.V48I3.51790","DOIUrl":"https://doi.org/10.3329/BMJ.V48I3.51790","url":null,"abstract":"Control of blood pressure during anesthesia is very crucial. Laryngoscopic manipulation and endotracheal intubation are always a matter of concern which capable of producing tachycardia, arrhythmias and hypertension which is generally well tolerated in healthy patient. In hypertensive patient cardiovascular response to laryngoscopy and intubation is exaggerated.  This study was conducted to assess the efficacy of different doses of dexmedetomidine in reduction of blood pressure during laryngoscopy and intubation in controlled hypertensive patient. This prospective Randomized controlled trial was carried out among 60 patients belonging to American Society of Anesthesiologists (ASA) Physical Status II posted for elective general anesthesia. Patients were randomly divided into three groups where each groups contain twenty with fixed card sampling. Group A consisted of twenty (20) patients who were received IV dexmedetomidine 0.5 µg/kg diluted to 50 ml with normal saline.  Group B consisted of twenty (20) patients who were received IV dexmedetomidine 0.75 µg/kg diluted to 50 ml with normal saline. Group C consisted of twenty (20) patients who were received IV dexmedetomidine 1 µg/kg diluted to 50 ml with normal saline. Each infusions were started 10 minutes prior induction of general anesthesia and were given over 10 minutes. Baseline systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean arterial blood pressure (MAP) were measured by one volunteer anesthesiologists by non-invasive blood pressure monitor. Following laryngoscopy and endotracheal intubation, the parameters recorded were SBP, DBP and MAP at 1, 3 and 5 min after intubation by non-invasive blood pressure monitor. The primary outcome measures were blood pressure responses after intubation and secondary outcome measures were to note down any adverse effects associated with drugs.  In this study baseline readings of SBP, DBP and MAP were almost similar in all three groups and statistically not significant. Maximum intubation response was seen at 1 min post intubation in all the three groups. The mean SBP of group A varied from 144.8±8.4 mmHg to 118.5±4.4 mmHg that of group B varied from 134.8±4.1 to 122.0±4.2 mmHg and then group C varied from 126.5±15.5 mmHg to 103.8±8.4 mmHg during different evaluation period (p 0.05). Dexmedetomidine in doses of 0.75 µg/kg was more effective compared to 0.05 µg/kg and 1µg/kg in attenuating blood pressure response to laryngoscopy and endotracheal intubation without producing adverse effects in control hypertensive patients. \u0000Bangladesh Med J. 2019 Sep; 48 (3): 1-8","PeriodicalId":8711,"journal":{"name":"Bangladesh Medical Journal","volume":"268 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89060865","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":"Status of Serum Magnesium Level in Bangladeshi Children and Adolescents with Type 1 Diabetes Mellitus and its Relationship with Glycemic Control","authors":"Shawana Haque, M. Muttalib, A. Nesa, N. Uddin, S. Hossain, Thahamina Shahabuddin, A. Tasnim","doi":"10.3329/BMJ.V48I3.51792","DOIUrl":"https://doi.org/10.3329/BMJ.V48I3.51792","url":null,"abstract":"Type 1 diabetes mellitus is one of the most common endocrine and metabolic disorder in children and adolescents. Alteration of serum magnesium level may be associated with metabolic control and diabetic complications. The aim of the study was to evaluate serum magnesium level and find out its relationship with glycemic control in type 1 diabetic children and adolescents. For this study 80 type 1 diabetic children & adolescents with age range 1 to 18 years and 80 aged matched healthy controls were enrolled from the outpatient department of Changing Diabetes in Children, Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine & Metabolic disorders, General Hospital, Dhaka. Using a cross sectional design, we measured anthropometric parameters and serum magnesium level of all study subjects. We also estimate the fasting plasma glucose and HbA1c levels of the diabetic children and adolescents and controls. The mean ± SD of serum magnesium level was significantly lower in patient with type 1 DM compared to control (0.7 ± 0.1 vs 0.8 ± 0.1 mmol/L respectively; p= < 0.001). Lower level of magnesium was found in subjects with poor glycemic control compared to good glycemic control (0.6 ± 0.1 vs 0.8 ± 0.1 mmol/L respectively; p= < 0.001). This study showed that serum magnesium level was lowered  in type 1 diabetic children and adolescents and it was strongly associated with poor glycemic control which potentially contributing to the early development of diabetic complications. \u0000Bangladesh Med J. 2019 Sep; 48 (3): 16-20","PeriodicalId":8711,"journal":{"name":"Bangladesh Medical Journal","volume":"16 1","pages":"16-20"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87587493","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":"Intraoperative Consultation (Frozen Section) in the Diagnosis of Ovarian Tumour","authors":"J. Ferdous, Shiuly Chowdhury, F. Begum, S. Akhter, S. Khatun, Jakanta Faika","doi":"10.3329/BMJ.V48I3.51795","DOIUrl":"https://doi.org/10.3329/BMJ.V48I3.51795","url":null,"abstract":"Ovarian cancer is a devastating disease preoperative evaluation of the patients with an ovarian tumour is difficult. So frozen section biopsy of ovarian tumour is important to determine the extent of surgery. This retrospective cross-sectional study was carried out in the Department of Gynaecological Oncology, Bangabandhu Sheikh Mujib Medical University from August 2016 to July 2017 to determine the validity of frozen section biopsy in the diagnosis of ovarian tumour. Fifty cases of ovarian tumour underwent frozen section biopsy were included by purposive sampling. Histopathological finding was taken as the gold standard. Data was analyzed by SPSS version 16. The sensitivity of frozen section in the diagnosis of benign, borderline and malignant were 100%, 100% and 97.67% respectively as well as the specificities were 100%, 97.96% and 100% respectively. Similarly the accuracy, PPV, NPV for the benign, borderline and malignant ovarian tumour were also high except the borderline tumour which had low PPV. \u0000Bangladesh Med J. 2019 Sep; 48 (3): 34-38","PeriodicalId":8711,"journal":{"name":"Bangladesh Medical Journal","volume":"7 1","pages":"34-38"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74429009","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}