Angell, W W Invited letter concerning: stentless porcine aortic bioprosthesis. [electronic resource] - The Journal of thoracic and cardiovascular surgery Aug 1990 - 317 p. digital Publication Type: Comment; Letter ISSN: 0022-5223 Subjects--Topical Terms: AnimalsAortic ValveBioprosthesisHeart Valve ProsthesisHumansProsthesis Design