title: Threentry: what is the mechanism?
authors.affiliation: Division of Cardiology, Section of Electrophysiology, University of California, San Francisco, 94143, USA. marcusg@medicine.ucsf.edu
authors.forename: Gregory M
authors.initials: GM
authors.lastname: Marcus
authors.forename: Paul D
authors.initials: PD
authors.lastname: Varosy
authors.forename: Melvin M
authors.initials: MM
authors.lastname: Scheinman
authors.forename: Zian H
authors.initials: ZH
authors.lastname: Tseng
mesh_terms: D000293:Adolescent; D017115:Catheter Ablation; D004562:Electrocardiography; D022062:Electrophysiologic Techniques, Cardiac; D006329:Heart Conduction System / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D008297:Male; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000503:physiopathology* / Q000601:surgery; D013614:Tachycardia, Paroxysmal / Q000503:physiopathology* / Q000601:surgery