on the other hand some of the differences , in accordance with other peculiarities of greeks with connective tissue disease , emphasize the role of racial and/or ethnic background in the hla-association of various autoimmune diseases and the fact that the detectable hla alloantigens in certain diseases modify disease and autoantibody expression rather than being responsible for the autoimmune process itself .
C0009782
connective tissue disease
C0012634
disease