 2. Patients who met DSM-IV criteria for schizophrenia: 295.20 Schizophrenia, Catatonic Type, 295.10 Schizophrenia, Disorganized Type, 295.30 Schizophrenia, Paranoid Type, 295.60 Schizophrenia, Residual Type, and 296.90 Mood Disorder NOS. 