In a study published by Kanasuo et al in Melanoma Research, researchers investigated if the use of oral vitamin D supplements was associated with photoaging, actinic keratoses, pigment cell nevi, and skin cancers.
Question 1 of 5
In this study population, ___ percent of patients who regularly used vitamin D had a history of past or present melanoma, compared with ___ percent of patients who did not use vitamin D.
