title: The Hancock II xenograft: a step forward in bioprosthetic valve longevity?
authors: G
authors: G
authors: Thiene
authors: U
authors: U
authors: Bortolotti
authors: M
authors: M
authors: Valente
mesh_terms: D001705:Bioprosthesis; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation* / Q000639:trends; D006801:Humans; D011183:Postoperative Complications / Q000517:prevention & control; D011474:Prosthesis Design; D011475:Prosthesis Failure