- Comet assay demonstrates a higher ultraviolet B sensitivity to DNA damage in dysplastic nevus cells than in common melanocytic nevus cells and foreskin melanocytes. Noz, K.C., Bauwens, M., van Buul, P.P., Vrolijk, H., Schothorst, A.A., Pavel, S., Tanke, H.J., Vermeer, B.J. J. Invest. Dermatol. (1996)