Complex sentence: Walter H. Pritchard (April 14,1910, Hancock, New York--August 31,1982) was an American Track & Field olympian and distinguished cardiologist who is credited with the first defibrillator procedure to restart a human heart.
Split into simpler sentences: Walter H. Pritchard (April 14,1910, Hancock, New York--August 31,1982) was an American track and field Olympian and cardiologist. He is credited with the first defibrillator procedure to restart a human heart.