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#blood typing #hemagglutination #blood group test #ABO system #transfusion medicine #hematology

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#blood group system #abo rh #blood typing #blood antigens #rhesus factor

❤️🅰️🅱️🅾️(🆎)±

#ABO Rh system #blood typing #rh factor #positive blood type #negative blood type #blood compatibility #universal donor #universal recipient