1. Prenatal Diagnostic Center Dongguan Maternal and Children Health Hospital Dongguan Guangdong People's Republic of China
2. Department of Medical Genetics, School of Basic Medical Sciences Southern Medical University Guangzhou Guangdong People's Republic of China
3. Guangdong Genetics Testing Engineering Research Center Guangzhou Guangdong People's Republic of China
4. Innovation Center for Diagnostics and Treatment of Thaelassemia Nanfang Hospital, Southern Medical University Guangzhou Guangdong People's Republic of China
5. Department of Obstetrics & Gynecology Dongguan Maternal and Children Hospital Dongguan Guangdong People's Republic of China