1. Department of Medical Genetics, Liuzhou Key Laboratory of Birth Defects Prevention and Control, Liuzhou Maternity and Child Healthcare Hospital, Liuzhou, People’s Republic of China
2. Liuzhou Key Laboratory of Reproductive Medicine, Liuzhou, People’s Republic of China
3. Guangxi Clinical Research Center for Obstetrics and Gynecology, Liuzhou, People’s Republic of China
4. Liuzhou Key Laboratory of Thalassemia Precise Prevention and Treatment, Liuzhou, People’s Republic of China
5. Guangxi Health Commission Key Laboratory of Birth Cohort Study in Pregnant Women of Advanced Age, Liuzhou, People’s Republic of China
6. The Reproductive Hospital of Guangxi Zhuang Autonomous Region, Nanning, People’s Republic of China