| Huey Tsyh ChenAffiliation: Centers for Disease Control and Prevention Country: USA Designing and conducting participatory outcome evaluation of community-based organizations' HIV prevention programsHuey Tsyh Chen Division of HIV AIDS Prevention Intervention Research and Support, National Center for HIV, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA AIDS Educ Prev 14:18-26. 2002 The bottom-up approach to integrative validity: a new perspective for program evaluationHuey T Chen Centers for Disease Control and Prevention, National Center for Environmental Health, Division of Environmental Hazards and Health Effects, Air Pollution and Respiratory Health Branch, Atlanta, GA, USA Eval Program Plann 33:205-14. 2010 A pilot study of the NGO-based relational intervention model for HIV prevention among drug users in ChinaHuey Tsyh Chen Department of Health Behavior, School of Public Health, University of Alabama at Birmingham, 1530 Third Avenue S, Birmingham, AL 35294, USA AIDS Educ Prev 17:503-14. 2005
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