1. Department of Medical Genetics and Cell Biology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
2. Department of Reproductive Genetics of Anyang Maternal and Child Health Care Hospital, Anyang, Henan 455000, P.R. China
3. Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
4. Medical Laboratory of The First Affiliated Hospital of Henan University of CM, Zhengzhou, Henan 450000, P.R. China
5. School of Life Sciences of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China