title: Alternating short and long RP tachycardias: what are the mechanisms?
authors.affiliation: Department of Medicine, Division of Cardiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA.
authors.forename: Joshua D
authors.initials: JD
authors.lastname: Balog
authors.forename: Daniel R
authors.initials: DR
authors.lastname: Frisch
authors.forename: David J
authors.initials: DJ
authors.lastname: Whellan
authors.forename: Reginald T
authors.initials: RT
authors.lastname: Ho
mesh_terms: D000368:Aged; D002036:Bundle of His / Q000503:physiopathology; D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000503:physiopathology* / Q000628:therapy