[1] University of North Carolina at Chapel Hill Project-China,Department of Sociology
[2] SESH Study Group,College of Mass Communication
[3] Dermatology Hospital of Southern Medical University (Guangdong Dermatology Hospital),Division of Community Health and Research
[4] School of Medicine of University of North Carolina at Chapel Hill,School of Public Health
[5] University of California,School of Medicine
[6] San Diego,undefined
[7] Shenzhen University,undefined
[8] Eastern Virginia Medical School,undefined
[9] Danlan Gongyi,undefined
[10] Shandong University,undefined
[11] University of California,undefined
[12] San Francisco,undefined