Publication Type: Journal Article Authors: Simoneau, I; Villeneuve, J; Marie-France Demers; Bouchard, R H Source: Can J Psychiatry, Volume 45, Issue 6, p.572-3 (2000) Keywords: Diagnosis, Dual (Psychiatry), Humans, Prognosis, Psychotropic Drugs, Schizophrenia, Street Drugs, Substance-Related Disorders