Letter: Diagnostic stability over time in schizophrenia, mania and depression.
D000342:Affective Symptoms / Q000175:diagnosis; D001714:Bipolar Disorder / Q000175:diagnosis*; D002389:Catatonia / Q000175:diagnosis; D003863:Depression / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006801:Humans; D012559:Schizophrenia / Q000175:diagnosis*; D013997:Time Factors