title: A polyurethane trileaflet cardiac valve prosthesis: in vitro and in vivo studies.
mesh_terms: D000818:Animals; D001021:Aortic Valve; D001672:Biocompatible Materials; D002417:Cattle; D006041:Goats; D006350:Heart Valve Prosthesis; D066298:In Vitro Techniques; D011140:Polyurethanes; D012756:Sheep
chemical_list: D001672:Biocompatible Materials; D011140:Polyurethanes