title: Interactive Grand Rounds. Case 1: palpitations.
authors.affiliation: American Medical Communications, Inc., Houston, Texas 77032, USA.
authors.forename: V E
authors.initials: VE
authors.lastname: Friedewald
authors.forename: B
authors.initials: B
authors.lastname: Olshansky
authors.forename: J P
authors.initials: JP
authors.lastname: Ornato
mesh_terms: D000368:Aged; D004562:Electrocardiography; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male