the metabolic fate of n-alkyl-n-butylnitrosamines ( alkyl=ethyl , propyl , and pentyl ) , which induce tumors in the liver and esophagus but do not induce bladder tumors , was investigated in the rat , in order to elucidate any possible correlation between metabolism and the noncarcinogenicity to the urinary bladder of these n-nitrosamines .
C0005695
bladder tumors
C0005682
urinary bladder