title: Substance abuse and the heterogeneity of schizophrenia a population-based study.
authors.forename: Brian
authors.initials: B
authors.lastname: Kirkpatrick
authors.forename: Erick M
authors.initials: EM
authors.lastname: Messias
authors.forename: Cenk
authors.initials: C
authors.lastname: Tek
mesh_terms: D000328:Adult; D005260:Female; D018740:Genetic Heterogeneity; D006801:Humans; D008297:Male; D011159:Population Surveillance; D015995:Prevalence; D012559:Schizophrenia / Q000453:epidemiology* / Q000235:genetics*; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000235:genetics*; D014481:United States / Q000453:epidemiology