lymphocytotoxic activity of sera from systemic lupus erythematosus ( sle ) patients and their families was inhibited by 50 % or more by preincubation of target cells with fab2 fragments of xenoantisera against beta 2 microglobulin or the heavy chain of the hla-a , b , c antigenic molecular complex .
C0301896
lymphocytotoxic
C0003320
antigenic