Postnatal development of red cell Le(a) and Le(b) antigens in Chinese infants.

Abstract excerpt

Lewis phenotyping of 487 blood samples from Chinese newborn infants and young children, revealed that 50% of cord cells were Le(a-b+) and 50% Le(a-b-). The weak Leb antigen of Le(a-b+) cord cells is most likely produced by the newborn infant rather than of maternal origin and it appears that these infants eventually develop by way of an intermediate Le(a+b+) stage into the adult Le(a-b+) phenotype. Most infants...

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