title: A 24-year-old man with an irregular pulse.
authors.affiliation: Cardiovascular Research Institute, Maastricht, The Netherlands.
authors.forename: Hein J
authors.initials: HJ
authors.lastname: Wellens
authors.affiliation: Cardiovascular Research Institute, Maastricht, The Netherlands,; Division of Cardiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts. Electronic address: mjoseph2@bidmc.harvard.edu.
authors.forename: Mark E
authors.initials: ME
authors.lastname: Josephson
mesh_terms: D003937:Diagnosis, Differential; D004562:Electrocardiography / Q000379:methods*; D006329:Heart Conduction System / Q000503:physiopathology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D018879:Ventricular Premature Complexes / Q000175:diagnosis* / Q000503:physiopathology; D055815:Young Adult