title: An irregularly irregular rhythm.
authors: Department of Cardiology and Cardiovascular Surgery, University of Rome La Sapienza, Italy.
authors: F
authors: F
authors: Barillà
authors: E
authors: E
authors: Mangieri
authors: G
authors: G
authors: Critelli
mesh_terms: D001281:Atrial Fibrillation / Q000175:diagnosis*; D016279:Atrial Function, Left; D016280:Atrial Function, Right; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D013612:Tachycardia, Ectopic Atrial / Q000175:diagnosis*