Dr. Aramrattana is a medical epidemiologist and a leading drug use researcher in Thailand. He is Assistant Professor of Family Medicine and Head of the Center for Substance Abuse Research at the Research Institute of Health Sciences at Chiang Mai University, in northern Thailand. He is the Thailand Principal Investigator on a number of US National Institutes of Health-supported HIV prevention trials for injection drug users and methamphetamine-using youth, and he is directing a study for the HIV Prevention Trials Network on buprenorphine/naloxone substitution maintenance therapy versus detoxification as an HIV prevention strategy. Dr. Aramrattana is the principal investigator (northern region) of the National Household Survey on Drug Abuse in Thailand, and has researched the effects of the 2003 Thai War on Drugs among drug users in northern Thailand. His current research includes a study of the efficacy of a network-oriented peer-based educational intervention to modify HIV risk behaviours among injection drug users. Dr. Aramrattana is also co-principal investigator on a study investigating methods to reduce drug-related HIV/STD risk behaviour among Thai youth.