title: Invited commentary.
authors.affiliation: Department of Cardiovascular Surgery, National Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka 565-8565, Japan. jkobayas@hsp.ncvc.go.jp
authors.forename: Junjiro
authors.initials: J
authors.lastname: Kobayashi
mesh_terms: D001705:Bioprosthesis; D002815:Chordae Tendineae / Q000601:surgery*; D006801:Humans; D008943:Mitral Valve / Q000601:surgery*; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging / Q000601:surgery; D011138:Polytetrafluoroethylene; D019919:Prosthesis Implantation; D018570:Risk Assessment; D016896:Treatment Outcome; D014463:Ultrasonography
chemical_list: D011138:Polytetrafluoroethylene