title: Significance of fibrillatory waves and the P terminal force in idiopathic atrial fibrillation.
mesh_terms: D000293:Adolescent; D000328:Adult; D001281:Atrial Fibrillation / Q000503:physiopathology*; D006332:Cardiomegaly / Q000150:complications; D004562:Electrocardiography; D006325:Heart Atria; D006801:Humans; D008875:Middle Aged