title: Invited commentary.
authors.affiliation: Lancashire Cardiac Centre, Blackpool Victoria Hospital, Blackpool, UK. dngaage@yahoo.com
authors.forename: Dumbor L
authors.initials: DL
authors.lastname: Ngaage
mesh_terms: D001281:Atrial Fibrillation / Q000503:physiopathology*; D006348:Cardiac Surgical Procedures; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D012849:Sinoatrial Node / Q000502:physiology*