title: Substance misuse in first-episode psychosis.
authors.forename: N
authors.initials: N
authors.lastname: Malik
authors.forename: M M
authors.initials: MM
authors.lastname: Singh
authors.forename: S C
authors.initials: SC
authors.lastname: Pradhan
mesh_terms: D015897:Comorbidity; D017831:Diagnosis, Dual (Psychiatry) / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D011618:Psychotic Disorders / Q000453:epidemiology*; D019966:Substance-Related Disorders / Q000453:epidemiology*