title: The schizophrenias: operational definitions.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001925:Brain Damage, Chronic / Q000150:complications; D002648:Child; D003937:Diagnosis, Differential; D005191:Family Characteristics; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010551:Personality; D011613:Psychotherapy; D012557:Schizoid Personality Disorder / Q000175:diagnosis; D012559:Schizophrenia / Q000175:diagnosis* / Q000235:genetics / Q000628:therapy; D012561:Schizophrenia, Childhood / Q000175:diagnosis; D012563:Schizophrenia, Paranoid / Q000175:diagnosis; D012564:Schizophrenic Language; D012565:Schizophrenic Psychology; D012737:Sex Factors; D012923:Social Class; D019966:Substance-Related Disorders