the formation and repair of carcinogen-dna adducts in esophagus and liver of rats treated with a single i.p . dose of methylbenzylnitrosamine ( mbn ) , dimethylnitrosamine ( dmn ) , diethylnitrosamine ( den ) or ethylnitrosourea ( enu ) has been studied using peroxidase immunocytochemistry to visualize o6-alkylguanine in dna of individual cells .
C0242958
carcinogen-dna adducts
C0012854
dna