De Bersaques J
J Cutan Pathol. 1975;2(5):246-53. doi: 10.1111/j.1600-0560.1975.tb00173.x.
The acitvities of six enzymes were determined by fluorometric micromethods in epidermal tumors (basal and squamous cell epithelioma, verruca seborrhecia and keratoacanthoma) and compared to the activities in the adjoining, apparently normal epidermis. Specific changes related to malignancy were not obvious.