Otto Heinrich Warburg
Otto Heinrich Warburg , son of physicist Emil Warburg, was a German physiologist, medical doctor and Nobel laureate. He served as an officer in the elite Uhlan during the First World War, and was awarded the Iron Cross for bravery. Warburg is considered one of the 20th centurys leading biochemists. He was the sole recipient of the Nobel Prize in Physiology or Medicine in 1931. In total, he was nominated for the award 47 times over the course of his career.
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Source: Wikipedia