Malignant melanoma of skin and sunspot activity.
D000416:Alberta; D002273:Carcinogens; D006801:Humans; D008545:Melanoma / Q000453:epidemiology*; D012525:Saskatchewan; D012878:Skin Neoplasms / Q000453:epidemiology*; D013472:Sunlight; D014466:Ultraviolet Rays / Q000009:adverse effects*
D002273:Carcinogens