北京大学公共卫生学院
peking university health science center
第三军医大学卫生防疫系
The Dept. of Public Health
the third military medical college
chongqing
广东省韶关市卫生防疫站；北京医科大学公共卫生学院
Shaoguan Health and Antiepidemiogy Station
广西医科大学公共卫生学院；广西八一铁合金
School of Public Health
guangxi medical university
湖南医科大学卫生系
The Department of Environmental Hygiene
hunan medical university
华西医科大学公共卫生学院
School of Public Health
West China Univenity of Medical Sciences
华西医科大学公共卫生学院；成都市第二卫生防疫站
School of Public Health
West China University of Medical Sciences