ROCHESTER, Minn., Aug. 24 (UPI) -- Dr. Hugh Butt, whose studies of coagulation showed Vitamin K could help stop internal bleeding, has died in Rochester, Minn. He was 98.
Butt's Aug. 16 death was confirmed by a spokeswoman for the Mayo Clinic in Rochester, where Butt was chief of the division of gastroenterology and internal medicine from 1967 to 1974, The New York Times reported Sunday.
Butt's research also found that Vitamin K could help patients with jaundice, the newspaper reported.
After his discoveries, Butt was appointed an assistant professor of medicine at Mayo in 1943. Mayo appointed him a professor of medicine in 1952.
In the 1960s, he called for the American College of Physicians to establish a system of self-testing so doctors could refresh their knowledge without having to reveal their scores.
He was president of the American College of Physicians in 1971 and 1972.
Butt, who was born in Belhaven, N.C., earned his medical degree from the University of Virginia in 1933 and a master's degree in medicine from the University of Minnesota in 1937.
Butt is survived by three daughters, seven grandchildren and 12 great-grandchildren.
