title: Visual Diagnosis: 19-year-old Boy with Syncope and Bradycardia.
authors.affiliation: Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, CO.
authors.forename: Christina A
authors.initials: CA
authors.lastname: Nelson
authors.affiliation: Division of Pediatric Cardiology, Children's Hospital Colorado, Aurora, CO.
authors.forename: Mark A
authors.initials: MA
authors.lastname: Farina
authors.affiliation: Department of Pediatric Infectious Diseases, Children's Hospital Colorado and University of Colorado School of Medicine, Aurora, CO.
authors.forename: Daniel
authors.initials: D
authors.lastname: Olson
authors.affiliation: Department of Pediatric Infectious Diseases, Children's Hospital Colorado and University of Colorado School of Medicine, Aurora, CO.
authors.forename: Samuel R
authors.initials: SR
authors.lastname: Dominguez
authors.affiliation: Department of Pediatric Infectious Diseases, Children's Hospital Colorado and University of Colorado School of Medicine, Aurora, CO.
authors.forename: Elizabeth J
authors.initials: EJ
authors.lastname: McFarland
mesh_terms: D001919:Bradycardia / Q000209:etiology*; D006801:Humans; D008193:Lyme Disease / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D008297:Male; D013575:Syncope / Q000209:etiology*; D055815:Young Adult