honeybug6853 honeybug6853
  • 01-02-2018
  • Biology
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How many bjork shiley valves have been implanted?

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cohvenant
cohvenant cohvenant
  • 01-02-2018
The valve was co-invented by American engineer Donald Shiley and Swedish heart surgeon Viking Björk. Beginning in 1971, it has been used to replace aortic valves and mitral valves.
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