1. Department of Medical Genetics, Maternal and Child Health Hospital of Hunan Province, Changsha, Hunan, China
2. The 3rd Xiangya Hospital, Central South University, Changsha, Hunan, China
3. Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
4. Department of Biology, The University of Texas at San Antonio, San Antonio, Texas, USA