Guo-Rong Han, graduated from Dalian Medical University. Chief physician, master tutor, director of Obstetrics and Gynecology and leader of Obstetrics and Gynecology subject in the Second Hospital of Nanjing (Affiliated Nanjing Hospital of Nanjing University of Chinese Medicine, Second Affiliated Hospital of Southeast University). Now is the deputy leader of Pregnancy Infection and Liver disease Study Group of Chinese Medical Association of Infectious Disease, vice chairman of Perinatal Branch of Jiangsu Society of Integrated Traditional Chinese and Western Medicine, vice chairman of Obstetrics and Gynecology and perinatal branch of the Nanjing Medical Association, member of National Technical Expert Group for prevention and treatment of hepatitis B during pregnancy, Birth Defects Consultation group of Special Committee on birth Defects Prevention and Control of Chinese Preventive Medicine Association. Published more than 30 papers and won numbers of Science and Technology Progress Awards.