title: Studying treatments and outcomes over time in substance abusers: Persistent Effects of Treatment Studies (PETS).
authors.affiliation: Westat, Rockville, MD 20850, USA.
authors.forename: Garrett E
authors.initials: GE
authors.lastname: Moran
authors.forename: James R
authors.initials: JR
authors.lastname: McKay
mesh_terms: D006801:Humans; D011584:Psychology; D012008:Recurrence; D012657:Self-Help Groups; D019966:Substance-Related Disorders / Q000534:rehabilitation*; D013997:Time Factors; D016896:Treatment Outcome