title: [A case of intermittent preexcitation syndrome using a Mahaim fiber].
mesh_terms: D000293:Adolescent; D004562:Electrocardiography; D006801:Humans; D008297:Male; D011226:Pre-Excitation Syndromes / Q000175:diagnosis*; D011227:Pre-Excitation, Mahaim-Type / Q000175:diagnosis*