mblakehoops5205 mblakehoops5205

12-09-2017
Health

contestada

Where was heart valve replacement surgery researched and originated?

Respuesta :

allissag63 allissag63

22-09-2017

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.

Answer Link

Otras preguntas

Solve each equation. |x+5|=-3

What is 4.5 repeating as a fraction?

Help me with ixl please

a and b are vectors that are not parallel. FG = 2a − 3b - Choose all of the vectors below which are parallel to FG. a-b10a-15 3a-2b-4a+6b 2a + 3b 2a-3b-4a 2a-12

Is 181 prime or composite? Justify your answer. A. 181 is prime because it has a factor of 9. B. 181 is prime because its only factors are 1 and itself. C. 181

A circle with a radius of 5 is transformed into the following function: (x/3)² + (5y)² = 25 What percentage of the original circle's area is the area of the new

In how many ways can a committee of five Democrats and four Republicans be formed from a group of twelve Democrats and twelve Republicans?

a and b are vectors that are not parallel. FG = 2a − 3b - Choose all of the vectors below which are parallel to FG. a-b10a-15 3a-2b-4a+6b 2a + 3b 2a-3b-4a 2a-12

The study of the communicative function of touch is known as A) haptics. B) paralinguistics. C) chronemics.

373646351636646475753626266374747574884x848484893990299149440505944330309877=?