487
Participants
Start Date
June 30, 2016
Primary Completion Date
October 31, 2017
Study Completion Date
April 30, 2018
maternal biological folate level
supplementation status and serum level
maternal biological Vitamin D level
supplementation status and serum level
Children Hospital of Fudan University, Shanghai
Minhang Maternal and Children Health Care Hospital
OTHER
Children's Hospital of Fudan University
OTHER