Karl Landsteiner--discoverer of the major human blood groups.
Kyle
R A
RA
Shampo
M A
MA
D001317:Austria; D001789:Blood Group Antigens / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D009613:Nobel Prize; D010678:Philately; D012699:Serology / Q000266:history* / Q000379:methods
D001789:Blood Group Antigens