title: How to avoid problems with Freestyle valve implantation.
authors.forename: A
authors.initials: A
authors.lastname: Kalangos
mesh_terms: D001021:Aortic Valve / Q000601:surgery*; D001705:Bioprosthesis; D019918:Heart Valve Prosthesis Implantation / Q000379:methods*; D006801:Humans; D011183:Postoperative Complications / Q000517:prevention & control; D016896:Treatment Outcome