title: The assessment of negative and positive features in schizophrenia.
authors.affiliation: Northwick Park Hospital, Harrow, Middlesex.
authors.forename: E C
authors.initials: EC
authors.lastname: Johnstone
mesh_terms: D000342:Affective Symptoms / Q000523:psychology; D006801:Humans; D011569:Psychiatric Status Rating Scales; D012559:Schizophrenia / Q000175:diagnosis*; D012564:Schizophrenic Language; D012565:Schizophrenic Psychology