Blood Transfusion
InventorKarl Landsteiner
Year1901
CategoryMedicine
OriginAustria
About Blood Transfusion
Landsteiner discovered blood groups A, B, AB, and O. Before this, transfusions were Russian roulette. He won the 1930 Nobel Prize. During WWI, blood transfusions saved thousands. The first blood bank opened in 1937.
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