a study of the frequencies of various hla-b antigens in both groups of patients , in regard to a control group of piemontese population , in relation to the intensity of association ( relative risk ) and to the statistical importance of frequencies , shows only a possible protective effect of the hla-b18 phenotype ( linkage disequilibrium with hla - dr3 ) towards the production of anti-insulin antibodies and hyperimmune clinical manifestations , such as allergy .
C0019737
hla-b antigens
C0062821
hla-b18