作者单位:
Dong Cheng Dist First Maternal & Child Care Serv, Dept Obstet & Gynecol, Beijing 100007, Peoples R
[1]
Peking Univ, Dept Obstet & Gynecol, Peoples Hosp, 11 Xizhimen South Str, Beijing 100044, Peoples R
[2]
Peking Univ, Dept Pathol, Peoples Hosp, Beijing 100044, Peoples R China
[3]
发布时间
2021-12-22