Author names and affiliations
Shuyuan Yan1,
Yanling
Wang1, Ying
Chen1, Xiaoni Kuang1, Da
Hou1, Xueyi Li1, Linglin
Pan1, Guangwen Huang2, Xiangwen
Peng1*, Jun He1*, Tuanmei
Wang1*
1
Changsha
Maternal and Child Health Hospital
Affiliated to Hunan Normal University, Changsha 410007, China.
2 Hunan Provincial Maternal and Child Health Care Hospital, Changsha,
410008, Hunan Province, China.