"Choose Today, Live Tomorrow": A Content Analysis of Anti-Substance Use Messages Produced by Adolescents.

Adolescent-produced anti-substance use messaging is an increasingly popular and effective prevention strategy. However, little is known about the content of these messages and the production elements adolescents use to bring that content to life. In this article, we present a content analysis of 95 anti-substance use messages developed by 4-H club members across nine U.