ABO blood group system

(redirected from H antigen)
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Related to H antigen: O antigen, H gene, A antigen
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Noun1.ABO blood group system - a classification system for the antigens of human bloodABO blood group system - a classification system for the antigens of human blood; used in blood transfusion therapy; four groups are A and B and AB and O
classification system - a system for classifying things