results of analysis of surface antigens of ppd-specific proliferative cells in peripheral blood and pleural effusion from tuberculous pleurisy patients as well as healthy controls indicate that the ppd-specific proliferative response is mediated by leu 1+ , leu 2a- , leu 3a+ cells and leu 1+ , leu 2a- , leu3a- cells .
C0699040
of
C0007634
cells