摘要
Zheng Zhenzhen, female, obtained doctor degree in demography in Peking University (2000) and bachelor degree in Department of Electronics in University of Science and Technology of China (1977). She had studied in the United States and obtained a master degree in statistics (1990) and medical informatics (1988). She had taught for 10 years in the Institute of
Zheng Zhenzhen, female, obtained doctor degree in demography in Peking University （2000） and bachelor degree in Department of Electronics in University of Science and Technology of China （1977）. She had studied in the United States and obtained a master degree in statistics （1990） and medical informatics （1988）. She had taught for 10 years in the Institute of Population
