the chemosensitivity of 20 human neoplastic tissues including 13 gastric and 7 colorectal cancers was tested using 5-fluorouracil ( 5-fu ) and its analogues : 1- ( 2-tetrahydrofuryl ) -5-fu ( ft ) , uracil/ft ( uft ) and 1-hexylcarbamoyl-5-fu ( hcfu ) , and the in vivo subrenal capsule ( src ) assay .
C0041917
uracil
C0016360
fu