title: Deficit or negative syndrome?
authors.forename: S R
authors.initials: SR
authors.lastname: Kay
authors.forename: L A
authors.initials: LA
authors.lastname: Opler
mesh_terms: D005069:Evaluation Studies as Topic; D006801:Humans; D011594:Psychometrics; D012559:Schizophrenia / Q000145:classification / Q000175:diagnosis*; D012565:Schizophrenic Psychology