through a continuing policy of avoiding mismatches for hla antigens and lymphocytotoxic antibody crossmatching , transplant survival rates were found to correlate with the degree of hla-a and b antigen mismatching from 1968 to 1978 and with hla-b and dr antigen mismatching from 1979 to 1988 .
C0019721
hla antigens
C0019737
hla-b