title: Compound pulsus alternans: independent alternation within weak beats.
authors.affiliation: Cardiology Division, Saint Vincent Hospital, Worcester, Massachusetts.
authors.forename: H
authors.initials: H
authors.lastname: Koito
authors.forename: D H
authors.initials: DH
authors.lastname: Spodick
mesh_terms: D000328:Adult; D009202:Cardiomyopathies / Q000503:physiopathology*; D004452:Echocardiography; D006801:Humans; D008297:Male; D009200:Myocardial Contraction; D011674:Pulse