RUAN Xiangyan  Professor, MD. PhD

-MD and PhD Supervisor of Capital Medical University .
-Execute Director of college of Obstetrics and Gynecology, Capital Medical University.
-Guest Professor of the University of Tuebingen, Germany
-Director of Department of Gynecological Endocrinology, Principal of the ovarian tissue cryopreservation bank and International Fertility Protection Center, Beijing Obstetrics & Gynecology Hospital, Capital Medical University.  
-Vice President of Beijing Medical Association Osteoporosis and bone mineral salt branch committee
-Vice President of the Osteoporosis Branch of the Chinese Society of Gerontology and Geriatrics 
-Vice President of the Maternal and Child Health Association of China Fertility Conservation Committee
-Vice President of the Maternal and Child Health Research Association of Reproductive Endocrinology Committee 
-Member of the Menopause  and Gynecological Endocrinology society of Obstetrics and Gynecology Branch of the Chinese Medical Association 
-Members of the International Gynecological Endocrinology Society and International menopause society  Committee
-President of Chinese Society of Gynecology Endocrinology affiliated to International Society of Gynecology Endocrinology
-Vice President of German-Chinese Society of Obstetrics and Gynecology 
-Associate Editor of Gynecological Endocrinology
-President of Beijing Society of Obstetrics and Gynecology for Endocrinology
-President of Fertility Protection and Preservation committee,China Association for promotion of health science and Technology.

Responsible for more than 50 projects including the National Natural Science Foundation of China;
Published more than 300 papers including more than 90 SCI articles.