title: Studies shed light on sunscreen efficacy.
mesh_terms: D006801:Humans; D012878:Skin Neoplasms / Q000517:prevention & control; D013471:Sunburn / Q000517:prevention & control; D013473:Sunscreening Agents / Q000494:pharmacology / Q000592:standards*
chemical_list: D013473:Sunscreening Agents