title: Therapist effects in the treatment of drug dependence: implications for conducting comparative treatment studies.
authors.affiliation: Department of Psychiatry, University of Pennsylvania, Philadelphia 19104.
authors.forename: P
authors.initials: P
authors.lastname: Crits-Christoph
authors.forename: K L
authors.initials: KL
authors.lastname: Beebe
authors.forename: M B
authors.initials: MB
authors.lastname: Connolly
mesh_terms: D000488:Allied Health Personnel; D000704:Analysis of Variance; D006801:Humans; D011379:Prognosis; D011613:Psychotherapy / Q000379:methods*; D019966:Substance-Related Disorders / Q000628:therapy*