Author/Authors :
YANG, Shaochun Dept. of Epidemiology and Health Statistics - School of Public Health - Soochow University, Suzhou, China , FU, Ying Dept. of Epidemiology and Health Statistics - School of Public Health - Soochow University, Suzhou, China , ZHOU, Yunhua Dept. of Epidemiology and Health Statistics - School of Public Health - Soochow University, Suzhou, China , RUAN, Yuhua Dept. of AIDS/STDs Prevention - Chaoyang Center for Disease Control and Prevention, Beijing, China , LI, Dongliang Dept. of AIDS/STDs Prevention - Chaoyang Center for Disease Control and Prevention, Beijing, China , GAO, Ge Dept. of Epidemiology and Health Statistics - School of Public Health - Soochow University, Suzhou, China
