title: A paucity of P waves.
authors.affiliation: Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia 19104, USA.
authors.forename: B B
authors.initials: BB
authors.lastname: Pavri
authors.forename: R T
authors.initials: RT
authors.lastname: Ho
authors.forename: D Z
authors.initials: DZ
authors.lastname: Kocovic
authors.forename: M S
authors.initials: MS
authors.lastname: Hanna
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D004562:Electrocardiography; D006801:Humans; D008297:Male