title: Dare to double spare?
authors.affiliation: Division of Cardiothoracic Surgery, Spectrum Health, Grand Rapids, Mich. Electronic address: tomasz.timek@spectrumhealth.org.
authors.forename: Tomasz A
authors.initials: TA
authors.lastname: Timek
mesh_terms: D001011:Aorta / Q000601:surgery; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008943:Mitral Valve