We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEffects of a social-network method for group assignment strategies on peer-led tobacco prevention programs in schools.AuthorsValente TW; Hoffman BR; Ritt-Olson A; Lichtman K; Johnson CAPublicationAmerican journal of public health, 2003, Vol 93, Issue 11, p1837ISSN0090-0036Publication typearticleDOI10.2105/ajph.93.11.1837