title: Physiological and pharmacological tests in the electrocardiographic investigation of athletes: a modern approach to an old problem.
mesh_terms: D000293:Adolescent; D000328:Adult; D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000503:physiopathology*; D001283:Atrioventricular Node / Q000502:physiology; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000187:drug effects / Q000502:physiology*; D006801:Humans; D008297:Male; D012849:Sinoatrial Node / Q000502:physiology; D013177:Sports