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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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The antigen lacking in Rh negative person is -
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The correct answer is  The commonly used terms Rh factor, Rh positive and Rh negative refer to the D antigen only. Besides its role in blood transfusion, the D antigen is used to determine the risk of hemolytic disease of the newborn (or erythroblastosis fetalis) for Rh disease management.