title: "It will never work!"--the St. Jude valve.
authors.affiliation: St. Jude Medical, Inc, Minneapolis, Minnesota.
authors.forename: M A
authors.initials: MA
authors.lastname: Villafana
mesh_terms: D003142:Communication; D004059:Diffusion of Innovation; D006350:Heart Valve Prosthesis / Q000266:history*; D049673:History, 20th Century; D008910:Minnesota; D011474:Prosthesis Design