the effect of cutaneous exposure to ultraviolet b ( uvb ) radiation alone , to crude coal tar ( cct ) alone , and to the combination of uvb and cct on the inducibility of the microsomal cytochrome p-450-dependent carcinogen-metabolizing enzyme aryl hydrocarbon hydroxylase ( ahh ) and other monooxygenases such as 7-ethoxyresorufin o-deethylase ( erd ) and 7-ethoxycoumarin o-deethylase ( ecd ) activities in the skin of neonatal rats was studied .
C0003927
aryl hydrocarbon hydroxylase
C0000644
7-ethoxycoumarin