15,000
Participants
Start Date
April 1, 2025
Primary Completion Date
September 30, 2026
Study Completion Date
September 30, 2026
no interventions
it is a observational study, do not have interventions.
RECRUITING
Weili Yan, Shanghai
RECRUITING
Urumqi Children's Hospital, Ürümqi
RECRUITING
Anhui Provincial Children's Hospital, Hefei
RECRUITING
Qidong Women and Children Hospital, Qidong
RECRUITING
Shanxi Provincial Children's Hospital, Taiyuan
RECRUITING
Chongqin Medical University Affiliated Children's Hospital, Chongqing
Children's Hospital of Fudan University
OTHER