1 Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing, China.
2 Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China, School of Public Health, Chongqing Medical University, Chongqing, China.
3 Department of Biomedical Sciences, State University of New York at Albany.
4 The Reproductive Center, Chengdu Xinan Gynecology Hospital, Chengdu, China.
5 Academician Workstation, Department of Pharmacology, Changsha Medical University, Changsha, China.
6 Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University (Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education), Chengdu, China.
This cohort study assesses the association of maternal hepatitis B virus (HBV) serostatus with pregnancy outcomes in women undergoing freeze-thaw embryo transfer (FET).