1,200
Participants
Start Date
January 1, 2021
Primary Completion Date
December 31, 2023
Study Completion Date
December 31, 2041
Griffiths development scales
Griffiths development scales Chinese Edition (gds-c) was used to evaluate the development levels of children up to 6 years and WISC for children more than 6 years.
RECRUITING
Shanghai children's medical center, Shanghai
Shanghai Children's Medical Center
OTHER