title: Electrocardiographic case--"abnormal rhythm" in a normal heart.
authors.affiliation: Department of Paediatrics, National University Hospital, Singapore.
authors.forename: S C
authors.initials: SC
authors.lastname: Quek
authors.forename: K S
authors.initials: KS
authors.lastname: Ng
mesh_terms: D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D002648:Child; D004562:Electrocardiography; D006325:Heart Atria / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology; D006337:Heart Murmurs / Q000175:diagnosis*; D006801:Humans; D008297:Male