Analysis of pregnancy outcomes and influencing factors of single embryo transfer and double embryo transfer byin vitrofertilization and embryo transfer
ZHANG Su-qun, NI Chen, SHENG Mei-ping, WANG Yun
上海交通大学学报（医学版） . 2019, (6): 642 .  DOI: 10.3969/j.issn.1674-8115.2019.06.013