title: Negative symptom measurement in individuals at-risk for psychosis.
authors.forename: Andrea L
authors.initials: AL
authors.lastname: Pelletier
authors.forename: Vijay A
authors.initials: VA
authors.lastname: Mittal
mesh_terms: D006801:Humans; D062706:Prodromal Symptoms; D011569:Psychiatric Status Rating Scales; D011618:Psychotic Disorders / Q000175:diagnosis*; D012559:Schizophrenia / Q000175:diagnosis*