Citation: Hoeppner, B., Schick, M., Carlon, H., & Hoeppner, S. (2019). Do self-administered positive psychology exercises work in persons in recovery from problematic substance use? An online randomized survey. Journal of Substance Abuse Treatment, 99, 16-23. doi: 10.1016/j.jsat.2019.01.006. Link to publisher’s article.