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The pattern of HLA segregation was analyzed in 10 sibships of haemophilia A patients, each of which included 1 or 2 haemophilic brothers with an antibody to factor VIII. The observed HLA distribution is suggestive of a linkage between the major histocompatibility complex and a gene responsible for immune response to isologous factor VIII.
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Frommel et al. (1977) studied this question.
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