State Key Laboratory of Medical Molecular Biology&Department of Medical Genetics;
Institute of Basic Medical Sciences&School of Basic Medicine;
Chinese Academy of Medical Sciences&Peking Union Medical College;
Beijing 100005;
China;
Department of Anatomy;
Histology and Embryology;
School of Basic Medicine;
China Medical University;
Shenyang 110122;
China;
Department of Biochemistry and Molecular Biology;
Shenzhen University School of Medicine;
Shenzhen 518060;
China;