title: Pulsus alternans.
authors.affiliation: Charing Cross and Westminster Medical School, London, United Kingdom.
authors.forename: M J
authors.initials: MJ
authors.lastname: Lab
authors.forename: W A
authors.initials: WA
authors.lastname: Seed
mesh_terms: D000818:Animals; D001145:Arrhythmias, Cardiac / Q000209:etiology* / Q000503:physiopathology; D002118:Calcium / Q000378:metabolism; D004594:Electrophysiology; D006321:Heart / Q000503:physiopathology; D006801:Humans; D009200:Myocardial Contraction / Q000502:physiology*
chemical_list: D002118:Calcium