1. Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
2. Hainan Provincial Key Laboratory for Human Reproductive Medicine and Genetic Research, Reproductive Medical Center, Hainan Provincial Clinical Research Center for Thalassemia, The First Affiliated Hospital of Hainan Medical University, Haikou 570102, Hainan, China
3. Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou 570102, Hainan, China
4. College of Medical Laboratory Science, Guilin Medical University, Guilin 541004, Guangxi, China
5. Center for Molecular Development and Disease, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX 77030, USA