Definition: A blood group consisting mainly of the antigens Fy(a) and Fy(b), determined by allelic genes, the frequency of which varies profoundly in different human groups; amorphic genes are common.
IM; coord with disease /blood (IM), not /immunol nor /genet; TN 230
Other names System, Duffy Blood-Group; Duffy Blood Group System; Blood-Group System, Duffy