Answer:
TYSM Hope you have a good day!!
Can I get a brailiest plz
Explanation:
Answer:
T I THINK THAT'S THE RIGHT ANSWER BASE ON MY STUCK KNOWLEDGE
Charles A. Hufnagel, M.D. (August 15, 1916 – May 31, 1989) was an American surgeon who in the early 1950s invented the first artificial heart valve.
