Children’s Hospital of Fudan University, Shanghai

Guangzhou Women & Children’s Medical Center, Guangzhou

Bijie First People’s Hospital, Guizhou

Qianxinan People’s Hospital, Guizhou

Tongren People’s Hospital, Guizhou

Guiyang Maternal & Children’s Hospital, Guizhou

Zunyi Medical College Hospital, Guizhou

Bazhong Central Hospital, Sichuan

Mianyang Central Hospital, Sichuan

Ya’an People’s Hospital, Sichuan

Dazhou Second People’s Hospital, Sichuan

Zhaotong Maternal & Children’s Hospital, Yunnan

Pu’er People’s Hospital, Yunnan

Dali Maternal & Children’s Hospital, Yunnan

Santai Maternity and Child Health Care Hospital, Sichuan

Lhasa People’s Hospital, Tibet

Shangrao People’s Hospital, Jiangxi

Hengyang Central Hospital, Hunan

Yinchuan First People’s Hospital, Ningxia

Liuzhou People’s Hospital, Guangxi

Youjiang Medical College Hospital, Guangxi

Yan’an People’s Hospital, Sha’anxi

Shehezi Medical College First Hospital, Xinjiang

Inner Mongolia Maternal & Children’s Hospital

Haining Maternal & Children’s Hospital, Zhejiang

Fuyang Maternal & Children’s Hospital, Zhejiang

Longyou Maternal & Children’s Hospital, Zhejiang

Zitong Maternity and Child Health Care Hospital, Sichuan