title: Porcine or bovine: does it really matter?
authors.affiliation: Centre of Cardiothoracic Surgery, University Hospital and Medical School, Coimbra, Portugal antunes.cct.chuc@sapo.pt.
authors.forename: Manuel J
authors.initials: MJ
authors.lastname: Antunes
mesh_terms: D000818:Animals; D001021:Aortic Valve / Q000601:surgery*; D001705:Bioprosthesis / Q000706:statistics & numerical data*; D005260:Female; D019918:Heart Valve Prosthesis Implantation / Q000295:instrumentation* / Q000401:mortality*; D006801:Humans; D008297:Male
keywords: Aortic valve replacement; Bovine pericardial; Outcomes; Porcine