Hessel, E A Evaluation of materials for use as prosthetic heart valve leaflets in a simple biologic model. [electronic resource] - Annals of surgery Dec 1966 - 1013-20 p. digital Publication Type: Journal Article ISSN: 0003-4932 Standard No.: 10.1097/00000658-196612000-00010 doi Subjects--Topical Terms: AnimalsAorta, ThoracicDogsFluorocarbon PolymersHeart Valve ProsthesisModels, TheoreticalRubberSiliconesUrethane