1. Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong Province, People’s Republic of China
2. Department of Genetic Metabolism, Prenatal Diagnostic Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, People's Republic of China
3. School of Laboratory Medical and Biotechnology, Southern Medical University, Guangzhou, Guangdong Province, People’s Republic of China
4. Neonatal Screening Center, Maternal and Child Health Hospital of Foshan, Foshan, Guangdong Province, People’s Republic of China