On the incidence of malignancy among schizophrenic patients.
D000437:Alcoholism; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000453:epidemiology; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000453:epidemiology*; D012559:Schizophrenia / Q000150:complications*; D012907:Smoking