since the subjects were usually tested with two or three extracts , 57/134 ( 42 % ) tests with melanoma patients ' leukocytes were inhibited by kcl extracts of melanoma tissue , whereas only 3/50 ( 6 % ) tests with leukocytes of normal donors and 4/27 ( 15 % ) with patients having other cancers gave positive results .
C0025202
extracts
C0006826
cancers