Characterization of human leukocyte differentiation antigens.

What would impel 190 different laboratories to work together in the performance of more than 150 000 assays to characterize about 800 antibodies? Participants in the 3rd International Workshop on Human Leukocyte Differentiation Antigens generally shared the conviction that such cooperative effort has the potential to bring order out of the chaos of molecules described on the surface of human leukocytes.