human fetal esophageal epithelium , after being exposed to nmbza , was found to contain o6-methyldeoxyguanine ( o6-medg ) , a nmbza-modified dna adduct , in tissue dna by radioimmunoassay and monoclonal antibody , which is highly specific to o6-medg .
C0242958
dna adduct
C0012854
dna