for investigating the possible relevance of alkylating n-nitroso compounds as causative agents in human carcinogenesis , we have quantitated o4-ethyl-2'-deoxythymidine ( o4-etdthd ) in human liver dna obtained from 33 autopsy specimens , i.e. , 13 cases with primary liver cancer ( lc ) , 8 with cancers other than liver cancer ( oc ) , and 12 with noncancerous diseases ( nc ) .
C0023884
liver
C0279000
liver cancer