1. Department of Forensic Science School of Basic Medical Sciences Central South University Changsha Hunan Province P. R. China
2. Reproductive Medicine Center Fujian Maternal and Child Health Care Hospital Fuzhou Fujian P. R. China
3. The first Research Institute of the Ministry of public security P.R.C. Beijing P. R. China
4. China‐Africa Research Center of Infectious Diseases Central South University Changsha Hunan P. R. China