16,164
Participants
Start Date
July 1, 2019
Primary Completion Date
December 14, 2020
Study Completion Date
December 14, 2020
Guangzhou Women and Children's Medical Center, Guangzhou
The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou
Sun Yat-Sen Memorial Hospital of Sun Yat-sen University, Guangzhou
Guangzhou Women and Children's Medical Center
OTHER
The Third Affiliated Hospital of Guangzhou Medical University
OTHER
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
OTHER