146
Participants
Start Date
March 1, 2023
Primary Completion Date
March 13, 2024
Study Completion Date
March 24, 2024
No intervention
Retrospect study, no direct intervention
Shenzhen Bao'an Maternal and Child Health Hospital, Shenzhen
Longhua Hospital Of Baoan District, Shenzhen
OTHER
Shenzhen Bao'an Maternal and Child Health Hospital
OTHER