Hari Donor Darah Sedunia
World Health Organization member states have designated June 14th, also the birthday of Karl Landsteiner, an Austrian biologist and physician who created the A-B-O blood group system, as World Blood Donor Day.
World Health Organization member states have designated June 14th, also the birthday of Karl Landsteiner, an Austrian biologist and physician who created the A-B-O blood group system, as World Blood Donor Day.