1.Influencing factors of participation in free health check-up among community residents: a study based on a 10-year health examination queue
Lanping CAI ; Hongmei ZHANG ; Tiemei RUAN ; Lei ZHANG ; Ling CHEN ; Haiyan LENG ; Yu FENG ; Puyang ZHENG
Chinese Journal of General Practitioners 2024;23(9):944-950
		                        		
		                        			
		                        			Objective:To investigate the influencing factors of participation in free health check-up among community residents.Methods:From 2012 to 2022 Xinzhuang Community Health Service Center of Shanghai Minhang district provided 5 free health check-up for local residents, once every 2 years. Among 5 904 eligible community residents with a mean age of (66.01±5.87) years, 682 (11.55 %), 912 (15.45 %), 842 (14.26 %), 934 (15.82 %), 1 061 (17.97 %) and 1 473 (24.95 %) participated in 5, 4, 3, 2, 1 and 0 health check-ups during 10 years, respectively. The influencing factors of participant frequency were analyzed with multivariate logistic regression model.Results:Multivariate logistic regression analysis showed that age 65 years and above ( OR=0.685, 95% CI: 0.625-0.751, P<0.001), exercising once a week or more ( OR=1.142, 95% CI: 1.031-1.266, P=0.011), and underweight ( OR=0.665, 95% CI:0.496-0.891, P=0.006) were independent factors influencing the participant in free health check-up among community residents. Conclusion:Community residents with older age or underweight are less likely to participate free health check-up, while those with frequent exercise like to participate.
		                        		
		                        		
		                        		
		                        	
2.Risk factors for all-cause mortality of hypertensive patients in a community in Shanghai
Hongmei ZHANG ; Ling CHEN ; Yajuan WANG ; Miao MIAO ; Haiyan LENG ; Tiemei RUAN ; Xiaoying TANG ; Lanping CAI ; Yan WANG ; Yu FENG ; Puyang ZHENG
Chinese Journal of General Practitioners 2024;23(10):1037-1043
		                        		
		                        			
		                        			Objective:To explore the risk factors of all-cause death in hypertensive patients in the community.Methods:A cohort of 4 049 hypertensive patients who participated in annual health checkups at Xinzhuang Community Health Service Centre of Shanghai Minhang district from January to December 2012 were enrolled in the study. All-cause death was the endpoint event of this study, and patients were divided into a fatal group and a survival group. The collection date for the endpoint event was December 2022. A multivariate Cox regression model was used to analyse the independent risk factors of all-cause mortality among hypertensive patients in the community.Results:Among 4 049 patients aged (67.9±7.1) years, 1 856 (45.8%) were males. There were 610 cases in the fatal group and 3 439 cases in the survival group. Multivariate Cox proportional regression showed that male gender ( HR=1.446, 95% CI: 1.200-1.742, P<0.001), older age ( HR=1.130, 95% CI: 1.118-1.143, P<0.001), higher waist-to-height ratio ( HR=8.117, 95% CI: 2.235-29.481, P=0.001), positive urinary protein ( HR=2.974, 95% CI: 2.202-4.016, P<0.001), high fasting blood glucose ( HR=1.070, 95% CI: 1.012-1.131, P=0.017), and history of stroke ( HR=1.819, 95% CI: 1.414-2.340, P<0.001) were independent risk factors for all-cause mortality in hypertensive patients, while exercise≥1/week ( HR=0.816, 95% CI: 0.668-0.996, P=0.046) and taking lipid-lowering medications ( HR=0.459, 95% CI: 0.223-0.947, P=0.035) were protective factors for all-cause mortality. Conclusion:For hypertensive patients, male gender, older age, higher waist-to-height ratio, positive urinary protein, high fasting blood glucose, and history of stroke are risk factors for all-cause mortality, while exercise≥1/week and taking lipid-lowering medications are protective factors.
		                        		
		                        		
		                        		
		                        	
3.Association of sleep status with ambulatory blood pressure monitoring indicators in community-dwelling hypertensive patients
Hongmei ZHANG ; Lanping CAI ; Yajuan WANG ; Ling CHEN ; Yanyan ZHOU ; Haiyan LENG ; Tiemei RUAN ; Xiaoying TANG ; Yu FENG ; Xue BAI ; Puyang ZHENG
Chinese Journal of General Practitioners 2024;23(12):1262-1269
		                        		
		                        			
		                        			Objective:To analyze the association between sleep status and ambulatory blood pressure monitoring indicators in community-dwelling hypertensive patients.Methods:It was a cross sentional study. Hypertensive patients who underwent 24-hour ambulatory blood pressure monitoring from May 2021 to April 2023 in Shanghai Xinzhuang Town were enrolled. The demographic information and sleep status of patients were obtained from the questionnaire. A TM-2430 blood pressure monitor was used to measure 24-hour ambulatory blood pressure, and the relevant indicators, including blood pressure level and blood pressure coefficient of variation were documented. The association between sleep status and blood pressure indicators was analyzed with multivariate linear regression model.Results:A total 1 135 patients aged (65.07±12.61) years were enrolled, and 473 (41.67%) of whom were males. The sleep time was<7 hours in 76 cases, 7- 8 hours in 219 cases and >8 hours in 840 cases; the bedtime was earlier than 22∶00 in 415 cases, between 22∶00 and 23∶00 in 474 cases and later than 23∶00 in 246 cases; the wake-up time was before 6∶00 in 230 cases, between 6∶00 and 7∶00 in 521 cases and after 7∶00 in 384 cases. Multivariate linear regression analysis showed that after controlling for gender and age, the sleep time was negatively associated with diurnal, noctumal and 24-hour diastolic blood pressure levels (all P<0.05), and positively associated with diurnal and noctumal systolic blood pressure coefficient of variation, noctumal diastolic blood pressure coefficient of variation, and 24-hour systolic blood pressure coefficient of variation (all P<0.05).The bedtime was positively associated with diurnal, noctumal and 24-hour diastolic blood pressure (all P<0.05), diastolic blood pressure (all P<0.05); and negatively associated with diurnal systolic blood pressure coefficient of variation, diurnal diastolic blood pressure coefficient of variation, noctumal systolic blood pressure coefficient of variation, 24-hour systolic blood pressure coefficient of variation, and 24-hour diastolic blood pressure coefficient of variation (all P<0.05). The wake-up time was positively associated with diurnal systolic blood pressure, diurnal, noctumal and 24-hour diastolic blood pressure (all P<0.05), and positively associated with diurmal systolic blood pressure and diastolic blood pressure (both P<0.05). Conclusion:Sleep status is closely associated with ambulatory blood pressure monitoring indicators in community-dwelling hypertensive patients.
		                        		
		                        		
		                        		
		                        	
4.Diagnostic value of a combined serology-based model for minimal hepatic encephalopathy in patients with compensated cirrhosis
Shanghao LIU ; Hongmei ZU ; Yan HUANG ; Xiaoqing GUO ; Huiling XIANG ; Tong DANG ; Xiaoyan LI ; Zhaolan YAN ; Yajing LI ; Fei LIU ; Jia SUN ; Ruixin SONG ; Junqing YAN ; Qing YE ; Jing WANG ; Xianmei MENG ; Haiying WANG ; Zhenyu JIANG ; Lei HUANG ; Fanping MENG ; Guo ZHANG ; Wenjuan WANG ; Shaoqi YANG ; Shengjuan HU ; Jigang RUAN ; Chuang LEI ; Qinghai WANG ; Hongling TIAN ; Qi ZHENG ; Yiling LI ; Ningning WANG ; Huipeng CUI ; Yanmeng WANG ; Zhangshu QU ; Min YUAN ; Yijun LIU ; Ying CHEN ; Yuxiang XIA ; Yayuan LIU ; Ying LIU ; Suxuan QU ; Hong TAO ; Ruichun SHI ; Xiaoting YANG ; Dan JIN ; Dan SU ; Yongfeng YANG ; Wei YE ; Na LIU ; Rongyu TANG ; Quan ZHANG ; Qin LIU ; Gaoliang ZOU ; Ziyue LI ; Caiyan ZHAO ; Qian ZHAO ; Qingge ZHANG ; Huafang GAO ; Tao MENG ; Jie LI ; Weihua WU ; Jian WANG ; Chuanlong YANG ; Hui LYU ; Chuan LIU ; Fusheng WANG ; Junliang FU ; Xiaolong QI
Chinese Journal of Laboratory Medicine 2023;46(1):52-61
		                        		
		                        			
		                        			Objective:To investigate the diagnostic accuracy of serological indicators and evaluate the diagnostic value of a new established combined serological model on identifying the minimal hepatic encephalopathy (MHE) in patients with compensated cirrhosis.Methods:This prospective multicenter study enrolled 263 compensated cirrhotic patients from 23 hospitals in 15 provinces, autonomous regions and municipalities of China between October 2021 and August 2022. Clinical data and laboratory test results were collected, and the model for end-stage liver disease (MELD) score was calculated. Ammonia level was corrected to the upper limit of normal (AMM-ULN) by the baseline blood ammonia measurements/upper limit of the normal reference value. MHE was diagnosed by combined abnormal number connection test-A and abnormal digit symbol test as suggested by Guidelines on the management of hepatic encephalopathy in cirrhosis. The patients were randomly divided (7∶3) into training set ( n=185) and validation set ( n=78) based on caret package of R language. Logistic regression was used to establish a combined model of MHE diagnosis. The diagnostic performance was evaluated by the area under the curve (AUC) of receiver operating characteristic curve, Hosmer-Lemeshow test and calibration curve. The internal verification was carried out by the Bootstrap method ( n=200). AUC comparisons were achieved using the Delong test. Results:In the training set, prevalence of MHE was 37.8% (70/185). There were statistically significant differences in AMM-ULN, albumin, platelet, alkaline phosphatase, international normalized ratio, MELD score and education between non-MHE group and MHE group (all P<0.05). Multivariate Logistic regression analysis showed that AMM-ULN [odds ratio ( OR)=1.78, 95% confidence interval ( CI) 1.05-3.14, P=0.038] and MELD score ( OR=1.11, 95% CI 1.04-1.20, P=0.002) were independent risk factors for MHE, and the AUC for predicting MHE were 0.663, 0.625, respectively. Compared with the use of blood AMM-ULN and MELD score alone, the AUC of the combined model of AMM-ULN, MELD score and education exhibited better predictive performance in determining the presence of MHE was 0.755, the specificity and sensitivity was 85.2% and 55.7%, respectively. Hosmer-Lemeshow test and calibration curve showed that the model had good calibration ( P=0.733). The AUC for internal validation of the combined model for diagnosing MHE was 0.752. In the validation set, the AUC of the combined model for diagnosing MHE was 0.794, and Hosmer-Lemeshow test showed good calibration ( P=0.841). Conclusion:Use of the combined model including AMM-ULN, MELD score and education could improve the predictive efficiency of MHE among patients with compensated cirrhosis.
		                        		
		                        		
		                        		
		                        	
5.Impact of different diagnostic criteria for assessing mild micro-hepatic encephalopathy in liver cirrhosis: an analysis based on a prospective, multicenter, real-world study
Xiaoyan LI ; Shanghao LIU ; Chuan LIU ; Hongmei ZU ; Xiaoqing GUO ; Huiling XIANG ; Yan HUANG ; Zhaolan YAN ; Yajing LI ; Jia SUN ; Ruixin SONG ; Junqing YAN ; Qing YE ; Fei LIU ; Lei HUANG ; Fanping MENG ; Xiaoning ZHANG ; Shaoqi YANG ; Shengjuan HU ; Jigang RUAN ; Yiling LI ; Ningning WANG ; Huipeng CUI ; Yanmeng WANG ; Chuang LEI ; Qinghai WANG ; Hongling TIAN ; Zhangshu QU ; Min YUAN ; Ruichun SHI ; Xiaoting YANG ; Dan JIN ; Dan SU ; Yijun LIU ; Ying CHEN ; Yuxiang XIA ; Yongzhong LI ; Qiaohua YANG ; Huai LI ; Xuelan ZHAO ; Zemin TIAN ; Hongji YU ; Xiaojuan ZHANG ; Chenxi WU ; Zhijian WU ; Shengqiang LI ; Qian SHEN ; Xuemei LIU ; Jianping HU ; Manqun WU ; Tong DANG ; Jing WANG ; Xianmei MENG ; Haiying WANG ; Zhenyu JIANG ; Yayuan LIU ; Ying LIU ; Suxuan QU ; Hong TAO ; Dongmei YAN ; Jun LIU ; Wei FU ; Jie YU ; Fusheng WANG ; Xiaolong QI ; Junliang FU
Chinese Journal of Hepatology 2023;31(9):961-968
		                        		
		                        			
		                        			Objective:To compare the differences in the prevalence of mild micro-hepatic encephalopathy (MHE) among patients with cirrhosis by using the psychometric hepatic encephalopathy score (PHES) and the Stroop smartphone application (Encephal App) test.Methods:This prospective, multi-center, real-world study was initiated by the National Clinical Medical Research Center for Infectious Diseases and the Portal Hypertension Alliance and registered with International ClinicalTrials.gov (NCT05140837). 354 cases of cirrhosis were enrolled in 19 hospitals across the country. PHES (including digital connection tests A and B, digital symbol tests, trajectory drawing tests, and serial management tests) and the Stroop test were conducted in all of them. PHES was differentiated using standard diagnostic criteria established by the two studies in China and South Korea. The Stroop test was evaluated based on the criteria of the research and development team. The impact of different diagnostic standards or methods on the incidence of MHE in patients with cirrhosis was analyzed. Data between groups were differentiated using the t-test, Mann-Whitney U test, and χ2 test. A kappa test was used to compare the consistency between groups. Results:After PHES, the prevalence of MHE among 354 cases of cirrhosis was 78.53% and 15.25%, respectively, based on Chinese research standards and Korean research normal value standards. However, the prevalence of MHE was 56.78% based on the Stroop test, and the differences in pairwise comparisons among the three groups were statistically significant (kappa = -0.064, P < 0.001). Stratified analysis revealed that the MHE prevalence in three groups of patients with Child-Pugh classes A, B, and C was 74.14%, 83.33%, and 88.24%, respectively, according to the normal value standards of Chinese researchers, while the MHE prevalence rates in three groups of patients with Child-Pugh classes A, B, and C were 8.29%, 23.53%, and 38.24%, respectively, according to the normal value standards of Korean researchers. Furthermore, the prevalence rates of MHE in the three groups of patients with Child-Pugh grades A, B, and C were 52.68%, 58.82%, and 73.53%, respectively, according to the Stroop test standard. However, among the results of each diagnostic standard, the prevalence of MHE showed an increasing trend with an increasing Child-Pugh grade. Further comparison demonstrated that the scores obtained by the number connection test A and the number symbol test were consistent according to the normal value standards of the two studies in China and South Korea ( Z = -0.982, -1.702; P = 0.326, 0.089), while the other three sub-tests had significant differences ( P < 0.001). Conclusion:The prevalence rate of MHE in the cirrhotic population is high, but the prevalence of MHE obtained by using different diagnostic criteria or methods varies greatly. Therefore, in line with the current changes in demographics and disease spectrum, it is necessary to enroll a larger sample size of a healthy population as a control. Moreover, the establishment of more reliable diagnostic scoring criteria will serve as a basis for obtaining accurate MHE incidence and formulating diagnosis and treatment strategies in cirrhotic populations.
		                        		
		                        		
		                        		
		                        	
6.A prospective multicenter and real-world study on the diagnostic value of combination of number connection test-B and line tracing test in mild hepatic encephalopathy
Junqing YAN ; Hongmei ZU ; Jing WANG ; Xiaoqing GUO ; Xiaoyan LI ; Shanghao LIU ; Huiling XIANG ; Zhaolan YAN ; Tong DANG ; Haiying WANG ; Jia SUN ; Lei HUANG ; Fanping MENG ; Qingge ZHANG ; Guo ZHANG ; Yan HUANG ; Shaoqi YANG ; Shengjuan HU ; Jigang RUAN ; Yiling LI ; Chuang LEI ; Ying SONG ; Zhangshu QU ; Ruichun SHI ; Qin LIU ; Yijun LIU ; Qiaohua YANG ; Xuelan ZHAO ; Caiyan ZHAO ; Chenxi WU ; Qian SHEN ; Manqun WU ; Yayuan LIU ; Dongmei YAN ; Chuan LIU ; Junliang FU ; Xiaolong QI
Chinese Journal of Digestion 2022;42(10):659-666
		                        		
		                        			
		                        			Objective:To investigate the diagnostic value of independent and combined subtests of the psychometric hepatic encephalopathy score (PHES) in mild hepatic encephalopathy(MHE) of patients with liver cirrhosis, so as to optimize the PHES.Methods:This was a prospective, multicenter and real-world study which was sponsored by the National Clinical Research Center of Infectious Diseases and the Portal Hypertension Consortium. Twenty-six hospitals from 13 provinces, autonomous regions and municipalities countrywide participated in this study, induding Tianjin Third Central Hospital, the Fourth People′s Hospital of Qinghai Province, the Second Affiliated Hospital of Baotou Medical College, the Third People′s Hospital of Taiyuan, the Fifth Medical Center of PLA General Hospital and so on. From October 2021 to February 2022, outpatients and hospitalized patients with liver cirrhosis and no obvious hepatic encephalopathy were consecutively enrolled. All patients received 5 PHES subjects in the same order: number connection test(NCT)-A, NCT-B, digit symbol test(DST), line tracing test(LTT) and serial dotting test(SDT), and the scores were calculated. The total score of PHES <-4 was taken as the cut-off value for diagnosing MHE. Compare the differences in each subtest between MHE group and non-MHE group. Receiver operating characteristic curve(ROC) and area under the curve(AUC) was performed to assess the diagnostic value of independent and combined subtests in MHE. Mann-Whitney U test and DeLong test were used for statistical analysis. Results:A total of 581 patients with liver cirrhosis were enrolled, 457 were diagnosed as MHE, and the incidence of MHE was 78.7%. The results of NCT-A, NCT-B, SDT, LTT, DST of MHE group were 60.00 s(47.01 s, 88.00 s), 90.45 s(69.32 s, 125.35 s), 74.00 s(57.65 s, 96.60 s), 74.72(60.00, 98.61) and 27.00(20.00, 36.00), respectively. Compared those of non-MHE group(34.00 s(29.15 s, 44.48 s), 50.00 s(40.98 s, 60.77 s), 50.00 s(41.07 s, 63.03 s), 46.23(38.55, 59.42) and 42.00(34.00, 50.75)), the differences were statistically significant( Z=12.37, 12.98, 9.83, 11.56, 10.66; all P<0.001). The AUC(95% confidence interval(95% CI)) of subtests of PHES NCT-B, NCT-A, LTT, DST and SDT alone in MHE diagnosis were 0.880(0.849 to 0.910), 0.862(0.828 to 0.896), 0.838(0.799 to 0.877), 0.812(0.772 to 0.851) and 0.788(0.743 to 0.832), respectively. The combination of 2 PHES subtests significantly increased the diagnostic efficacy. Among them the diagnostic efficacy of the combination of NCT-B and LTT was the best, the AUC(95% CI) was 0.924(0.902 to 0.947), the specificity was 91.9% and the sensitivity was 79.2%, which was better than a single PHES subtest (NCT-A, NCT-B, SDT, LTT and DST) and the combination of NCT-A and DST(AUC was 0.879, 95% CI0.847 to 0.910) which was recommended by guidelines on the management of hepatic encephalopathy in cirrhosis, the differences were statistically significant ( Z=3.78, 3.83, 5.57, 5.51, 5.38, 2.93; all P<0.01). Furthermore, compared between the combination of NCT-B and LTT and the combination of 3 subests of PHES, only the diagnostic efficacy of combination of NCT-B, LTT and SDT (AUC was 0.936, 95% CI 0.916 to 0.956) was better than that of the combination of NCT-B and LTT, the difference was statistically significant( Z=2.32, P=0.020). Conclusion:Based on the diagnostic efficacy and clinical feasibility of PHES subtests and their combinations, the combination of NCT-B and LTT is recommended for the diagnosis of MHE.
		                        		
		                        		
		                        		
		                        	
7.Application value of Manchester Pain Management Model of patients undergoing rotator cuff repair surgery
Xinyan YU ; Renzhi RUAN ; Jin XU ; Hongmei XI
Chinese Journal of Practical Nursing 2022;38(16):1212-1217
		                        		
		                        			
		                        			Objective:To investigate the effects of Manchester Pain Management Model (MPMM) on postoperative pain and joint function for patients undergoing rotator cuff repair surgery.Methods:A total of 66 patients undergoing rotator cuff repair surgery from February 2017 to October 2020 in the First People′s Hospital of Hefei were divided into experimental group and control group by random digits table method, with 33 cases in each group. The control group received routine nursing; based on the routine care, the experimental group implemented MPMM-based intervention. The degree of pain and shoulder function of the two groups were assessed by Visual Analogue Scale (VAS) and Constant-Murley Scale (CMS).Results:During the study period, 1 case in the experimental group was lost, 32 cases in the final experimental group and 33 cases in the control group. There was no significant difference in the score of VAS and CMS before surgery between the two groups ( P>0.05). At 1 day, 3 days, 3 weeks and 6 weeks after surgery, VAS scores in the experimental group were 5.47 ± 1.72, 4.63 ± 1.16, 3.25 ± 0.78, 1.81 ± 0.52, lower than those scores in the control group 6.42 ± 1.03, 5.45 ± 1.54, 4.30 ± 0.64, 2.39 ± 0.47, the differences were statistically significant ( t values were 2.36-3.11, all P<0.05). At 3, 6, 12 weeks after surgery, CMS scores in the experimental group were 57.09 ± 4.32, 67.75 ± 4.60, 81.94 ± 4.18, higher than those scores in the control group 52.27 ± 5.39, 64.24 ± 3.76, 78.91 ± 4.36, the differences were statistically significant ( t=3.97, 3.37, 2.89, all P<0.01). Conclusions:MPMM can effectively alleviate the postoperative pain and promote the recovery of joint function in patients undergoing rotator cuff repair surgery.
		                        		
		                        		
		                        		
		                        	
8.Progress in the pathogenesis and genotype-phenotype of Angelman syndrome
Chinese Journal of Applied Clinical Pediatrics 2021;36(22):1750-1753
		                        		
		                        			
		                        			Angelman syndrome (AS) is a neurodevelopmental disorder characterized by severe developmental delay, intellectual disability, exuberant behavior with happy demeanor, speech impairment, and epileptic seizures.The loss of UBE3A allele on maternal chromosome 15q11-13 is the main cause of AS.However, the pathogenesis and genotype-phenotype of AS is not yet clear.This study aims to review the research progress of AS.
		                        		
		                        		
		                        		
		                        	
9.A survey in compassion fatigue and the related factors of ICU nurses in Beijing′s two tertiary hospitals
Xiaoyan YU ; Hongmei RUAN ; Jing YANG ; Fang LIN
Chinese Journal of Practical Nursing 2018;34(13):1028-1031
		                        		
		                        			
		                        			Objective To investigate the compassion fatigue status and its related factors of ICU nurses in two tertiary hospitals in Beijing, providing a theoretical basis for further intervention. Methods This survey was conducted on 294 ICU nurses in two tertiary hospitals in Beijing using general information questionnaire and compassion fatigue scale. Results Nearly 62.86%(176/280) of ICU nurses had compassion fatigue, and the overall average score was 2.68. Among all the dimensions, the higher were 2.77 ± 0.72 of "loss of enthusiasm", 2.77 ± 0.52 of "feeling indifference" and 2.75 ± 0.67 of"ability doubt". The education degree, marital status and post were the main influencing factors of compassion fatigue. And the pressure from patients and their families were the main reasons of compassion fatigue of the nurses. Conclusions There is compassion fatigue among ICU nurses in two hospitals in Beijing, it is suggested that nursing managers should avoid the impact of sympathetic factors from the management point of view, reducing ICU nurses sympathy fatigue.
		                        		
		                        		
		                        		
		                        	
10.Investigation on testing results of 5 blood indicators in unpaid blood donors in Handan region during 2002-2012
Weina YANG ; Chaoliang RUAN ; Hongmei ZHANG ; Hong WANG
International Journal of Laboratory Medicine 2014;(16):2233-2234
		                        		
		                        			
		                        			Objective To understand the status of the blood safety in Handan region to provide the basis for recruiting blood do-nors in our region and the data support for meeting clinical blood use.Methods The detection results of 5 legal indicators among unpaid blood donors in Handan region during 2002-2012 were investigated and analyzed.Results The total positive rate of indica-tors detection was 5.52%,in which alanine aminotransferase(ALT)was 4.06%,hepatitis B surface antigen(HBsAg),hepatitis C virus antibody(anti-HCV)was 0.54%,human immunodeficiency virus(HIV)antibody(anti-HIV)was 0.24% and treponema palli-dum antibody(anti-TP)was 0.12%.Conclusion This survey is conducive to the blood donor recruitment work and strengthening the screening of blood donors is helpful for safety of clinical blood use.
		                        		
		                        		
		                        		
		                        	
            
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