The prolonged P wave and interatrial block. Time to consider a broader concept and different terminology.
Boineau
John
J
D000368:Aged; D001281:Atrial Fibrillation / Q000145:classification / Q000175:diagnosis*; D001282:Atrial Flutter / Q000145:classification / Q000175:diagnosis*; D004562:Electrocardiography / Q000379:methods*; D006325:Heart Atria / Q000503:physiopathology; D006327:Heart Block / Q000145:classification* / Q000175:diagnosis*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D009626:Terminology as Topic