honeybug6853 honeybug6853
  • 01-02-2018
  • Biology
contestada

How many bjork shiley valves have been implanted?

Respuesta :

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.
Answer Link

Otras preguntas

People who have an extra X chromosome could have gotten it through (A) nondisjunction. (B) transposition. (C) transduction. (D) crossing over. (E) all of the ab
what type of monkey starts with an h?
Who were the Britons fighting against in the middle ages?
A 36-tooth gear turns three times. It is connected to a 12-tooth gear. How many times does the 12-tooth gear turn?
which fraction shows 32/48 in simplest form
How many hawksbill turtles are left in the world?
fun facts about Uranus the planet?
You can divide any parallelogram into two matching triangles. How is this useful?i need to know this answer right now please
Which statement is true of a placenta? a. The placenta passes oxygen, nutrients, and other useful substances from the fetus to the mother. b. The placenta passe
what is 1/2 plus 9/10