title: Why so slow?
authors.forename: G
authors.initials: G
authors.lastname: Morton
authors.forename: J
authors.initials: J
authors.lastname: Bowes
mesh_terms: D001919:Bradycardia / Q000209:etiology*; D004452:Echocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D009223:Myotonic Dystrophy / Q000150:complications*; D013997:Time Factors