Artificial sunbathing using ultraviolet lights–a practice already linked to melanoma, the rarest but deadliest form of skin cancer–increases the risk of all types of skin cancer, according to new data.
Margaret R. Karagas of Dartmouth Medical School in Lebanon, N.H., and her colleagues questioned 603 participants with basal-cell carcinoma, 293 with squamous-cell carcinoma, and 540 cancerfree people about their history of sun exposure, tanning-salon patronage, and other risk factors for skin cancer.
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