People do not apply enough sunscreen for protection

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Abstract
EDITOR,—Despite the conventional wisdom that sunscreens should be recommended to prevent cutaneous malignant melanoma, evidence supporting this is lacking. J M McGregor and A R Young1 comment on the apparent increased risk of melanoma in people who use sunscreens.2 They suggest that people who use sunscreens containing ingredients that mainly absorb ultraviolet B spend longer in the sun because of the reduced risk of sunburn and so increase their dose of ultraviolet A radiation …