title: Symptom factors and clinical subtypes in mania.
authors.forename: Frederick
authors.initials: F
authors.lastname: Cassidy
authors.forename: Bernard J
authors.initials: BJ
authors.lastname: Carroll
mesh_terms: D001714:Bipolar Disorder / Q000145:classification / Q000175:diagnosis* / Q000523:psychology; D016000:Cluster Analysis; D003430:Cross-Sectional Studies; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005163:Factor Analysis, Statistical; D006801:Humans; D015999:Multivariate Analysis; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data; D012720:Severity of Illness Index