title: Invited commentary.
authors.affiliation: Division of Cardiothoracic Surgery, Northwestern University, Chicago, IL 60611-3056, USA. pmccart@nmh.org
authors.forename: Patrick
authors.initials: P
authors.lastname: McCarthy
mesh_terms: D001024:Aortic Valve Stenosis / Q000601:surgery*; D019918:Heart Valve Prosthesis Implantation / Q000379:methods*; D006801:Humans