title: New methodological directions for psychological intervention research among substance users.
authors.forename: Amanda L
authors.initials: AL
authors.lastname: Baker
mesh_terms: D006801:Humans; D011613:Psychotherapy / Q000379:methods*; D012106:Research / Q000639:trends*; D012107:Research Design; D019966:Substance-Related Disorders / Q000523:psychology / Q000534:rehabilitation*; D013997:Time Factors