1. Department of Social and Behavioral Health, Texas A&M Health Science Center, College Station, Texas.
2. Institute of Developmental Psychology, Beijing Normal University, Beijing, China.
3. Division of HIV/AIDS and STD, Guangxi Center for Disease Control and Prevention, Nanning, China.
4. Department of Applied Psychology, Central University of Finance and Economics, Beijing, China.
5. Pediatrics Prevention Research Center, Wayne State University, Detroit, Michigan.