1@@553-5552Comparisons of global postpartum hemorrhage guidelinesLIU Xinghui, CHEN Meng556-5593International guidelines of hypertensive disorders of pregnancy and clinical practice in ChinaGOU Wenli, XUE Yan559-5634International guideline and national consensus of non-invasive prenatal testingLIU Juntao564-5675Talk about WHO antenatal care guideline (2016) based on practice in ChinaYUAN Yu, QI Hongbo567-5716Guideline for prevention of the primary cesarean in promoting vaginal deliveryBIAN Zheng, YING Hao571-5757Obesity in pregnancy: the international development and practice in ChinaZHAO Xin, JIN Chunhua575-5788Venous thromboembolic disease in pregnancy:treatment, prevention and practice in ChinaGU Weirong, LI Xiaotian578-5849Risk factors and clinical features for recurrent tubal ectopic pregnancy: a case-control studyDAI Yuxin, ZHU Lan, LIU Zhufeng, LANG Jinghe585-58910Effect of standardized diagnosis and management during pregnancy on the outcome of twin pregnanciesQI Yanting, ZHOU Qiongjie, SHEN Jie, CHENG Haidong, LIU Caixia, LI Xiaotian, XIONG Yu590-59411Feasibility and safety of laparoscopic uterine procedures in ambulatory surgery centerXU Hong, LUO Huajie, ZHAO Aimin, YIN Wenyuan, JIA Hao, ZHANG Jidong, WEN Daxiang, DI Wen595-59812Evaluation of the physical and intellectual development of infants with late-onset fetal growth restrictionTAI Wen, DING Hongjuan599-60413Comparison of efficacy and safety of different add-back drugs during GnRH-a administration for patients with endometriosisLI Xueying, XIAO Li, HUANG Wei, FENG Xue, FU Jing, RUAN jie, CHEN Hengxi, YANG Shiyuan605-60814Analysis of the relationship between the risk of preterm delivery in singleton pregnancy and in vitro fertilization and embryo transferKANG Huixian, MA Caihong, WEI Yuan, WU Zhangxin, SUN Tao, ZHANG Jin, QIAO Jie609-61215Analysis of maternal mortality in Chongqing from 2011 to 2015ZHOU Xiaojun, HE Dan, YANG Li, HU Lina, DONG Xiaojing, CHANG Qing, ZHANG Hua613-61616Effect of comprehensive management for large diffuse adenomyosis by conservative surgery combined With GnRH-a and LNG-IUSXU Linna, ZHANG Shaofen, DING Jingxin, GUO Yanrong, LIU Xiaoxia, ZHANG Xuyin617-62117Genetic analysis and prenatal diagnosis of a family with androgen insensitivity syndromeHE Jing, ZHANG Jinman, QI Shuwu, SU Jie, ZHU Shu, ZHU Baosheng622-62518Effectiveness and safety of dinoprostone insert for labor induction in women with different cervical maturityLI Xueyuan, LAO Li, ZHANG Yinghui, GUO Yuewen, JIN Ping, YIN Baomin, WANG Xiaoyi, CHEN Dunjin, LIN Xiaobin, CHEN Xiang, LIN Qinglan, YU Yanping, XU Yanwen, ZHU Bin, QIN Yiwei, CHEN Hui, ZHANG Jianping, AN Shengli, WANG Zhijian626-63119Analysis of B19 virus infection during pregnancy in ShenyangZHANG Ning, CUI Xin, WEI Wei, LIU Xingchi, WANG Mengxing, YU Yuexin632-63520Expressions of five markers in endometrial diseases and their clinical significanceLU Ping, WANG Yi, ZHANG Yan, YANG Shuling, LIU Xuan, DONG JiaWei, ZHAO Xin636-640 