Russel S Falck

Respondent-driven sampling in the recruitment of illicit stimulant drug users in a rural setting: findings and technical issues.

Robert G Carlson, Jichuan Wang, R. Carlson, 2007, Addictive behaviors.

Respondent-driven sampling to recruit MDMA users: a methodological assessment.

Robert G Carlson, H. Siegal, Jichuan Wang, 2005, Drug and alcohol dependence.

Sources of information about MDMA (3,4-methylenedioxymethamphetamine): perceived accuracy, importance, and implications for prevention among young adult users.

Robert G Carlson, H. Siegal, Jichuan Wang, 2004, Drug and alcohol dependence.

Perceived need for substance abuse treatment among illicit stimulant drug users in rural areas of Ohio, Arkansas, and Kentucky.

Robert G Carlson, Carl Leukefeld, C. Leukefeld, 2007, Drug and alcohol dependence.