peripheral blood lymphocytes of patients , as compared with those of tuberculous patients or tuberculin-positive healthy donors , showed depressed in vitro blastogenic responses to purified protein derivative of tuberculin ( ppd ) , not only to ppds of mycobacterium tuberculosis but also to ppd-b and ppd-y of m intracellulare and m kansasii , respectively .
C0041296
tuberculous
C0034131
ppd