1. Department of Forensic Genetics, West China School of Basic Medical Sciences & Forensic Medicine Sichuan University Chengdu Sichuan P. R. China
2. Institute of Forensic Science Chengdu Public Security Bureau Chengdu Sichuan P. R. China
3. Human Sperm Bank, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education West China Second University Hospital of Sichuan University Chengdu Sichuan P. R. China