関連ワード:
why is o universal donor and ab universal recipient why blood group o is called universal donor and blood group ab universal recipient why is type o negative blood considered the universal donor and ab positive the universal recipient why is type o considered a universal donor and type ab as a universal recipient why a person having blood group o is called universal donor and ab a universal recipient explain why blood type o is the universal donor and type ab+ is the universal recipient why ab is called universal recipient what is universal donor and universal recipient
