1. Department of Stomatology, The Southwest Hospital of Army Medical University, Chongqing, P. R. China
2. Biomedical Analysis Center, College of Basic Medical Sciences, Army Medical University, Chongqing, P. R. China
3. Department of Neurology, 980 Hospital of PLA Joint Logistics Support Forces, Shijiazhuang, P. R. China
4. Department of Gynecology, The Second Affiliated Hospital of Shenzhen University (Shenzhen Baoan District People’s Hospital), Shenzhen, P. R. China