1943 Nobel Prize
4
laureates
3
fields
1943
Nobel Prize
Nobel Prize in Physics
for his contribution to the development of the molecular ray method and his discovery of the magnetic moment of the proton
United States of America
Nobel Prize in Chemistry
for his work on the use of isotopes as tracers in the study of chemical processes
Kingdom of Hungary
Nobel Prize in Physiology or Medicine
for the discovery of vitamin K
Denmark
for the discovery of the chemical nature of vitamin K
United States of America