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