in the ms patient group , a much weaker association was noted between bfs and hla-b7 suggesting either that the bf locus is musch closer to the hla-d than the hla-b locus or ( and ) that hla-d and bf products selectively interact ( perhaps on the surface of b lymphocytes ) with evolutionary advantage or disadvantage resulting from certain allelic combinations .
C0019744
hla-b7
C0019737
hla-b