title: The problem of reoperation in bioprosthetic valve recipients.
authors.forename: U
authors.initials: U
authors.lastname: Bortolotti
mesh_terms: D001705:Bioprosthesis; D006350:Heart Valve Prosthesis; D006801:Humans; D007430:Intraoperative Care / Q000379:methods; D007431:Intraoperative Complications / Q000517:prevention & control; D011475:Prosthesis Failure; D012086:Reoperation; D012307:Risk Factors