title: [Athlete's heart].
authors.affiliation: Third Department of Internal Medicine, School of Medicine, University of the Ryukyus.
authors.forename: O
authors.initials: O
authors.lastname: Sunagawa
authors.forename: K
authors.initials: K
authors.lastname: Fukiyama
mesh_terms: D006332:Cardiomegaly / Q000175:diagnosis; D003937:Diagnosis, Differential; D006321:Heart / Q000502:physiology*; D006801:Humans; D013177:Sports