title: Atrioventricular block reproduced during atrial threshold testing: what is the mechanism?
authors.affiliation: Division of Cardiovascular Medicine, University of Wisconsin Hospital and Clinics, Madison, Wisconsin.
authors.forename: Michael E
authors.initials: ME
authors.lastname: Field
mesh_terms: D000368:Aged; D054537:Atrioventricular Block / Q000209:etiology*; D004562:Electrocardiography; D006325:Heart Atria / Q000503:physiopathology*; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial