title: Letter by Madias regarding the article, "Repolarization alternans reveals vulnerability to human atrial fibrillation".
authors.forename: John E
authors.initials: JE
authors.lastname: Madias
mesh_terms: D000200:Action Potentials / Q000502:physiology*; D001281:Atrial Fibrillation / Q000503:physiopathology*; D005260:Female; D006325:Heart Atria / Q000503:physiopathology*; D006801:Humans; D008297:Male