PRECANCEROUS DERMATOSES.
D006801:Humans; D007642:Keratosis; D008910:Minnesota; D009369:Neoplasms / Q000209:etiology*; D011230:Precancerous Conditions; D012871:Skin Diseases; D012878:Skin Neoplasms; D013472:Sunlight
KERATOSIS; NEOPLASM ETIOLOGY; SKIN NEOPLASMS; SUNLIGHT