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Three cases of Negroid infants with clinical signs and symptoms resembling erythroblastosis fetalis were presented. In none of the cases was there any evidence of Rh sensitization. Two of the cases were apparently due to sensitization of the mother to the B agglutinogen; in the third case no serologic incompatibility could be demonstrated. The possible significance of these observations was discussed.
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Wiener et al. (1948) studied this question.
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