title: The changing content of psychiatric illness.
mesh_terms: D000342:Affective Symptoms / Q000209:etiology; D000367:Age Factors; D001714:Bipolar Disorder / Q000453:epidemiology / Q000209:etiology; D003469:Culture; D004739:England; D006801:Humans; D001523:Mental Disorders / Q000453:epidemiology*; D010259:Paranoid Disorders / Q000453:epidemiology; D011379:Prognosis; D012008:Recurrence; D012559:Schizophrenia / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology; D014481:United States