Attrition in substance abuse comparative treatment research: the illusion of randomization.
Howard
K I
KI
Department of Psychology, Northwestern University, Evanston, IL 60208.
Cox
W M
WM
Saunders
S M
SM
D006801:Humans; D010352:Patient Dropouts; D016032:Randomized Controlled Trials as Topic / Q000379:methods*; D012107:Research Design; D019966:Substance-Related Disorders / Q000628:therapy*