Article
Another example of the rare Ay phenotype.
Transfusion - 1 Jan 2000
Drozda E A, Dean J D
Abstract excerpt
The red cells of a patient typed as group O, but her serum lacked anti-A. Upon further testing, it appeared that the ABO phenotype was Am. Saliva studies demonstrated a normal amount of H substance but reduced A substance. Family studies established the ABO genotype of the proposita as A1O. The results suggest that modification of the cellular and salivary expression of the A antigen in this patient was the...
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