title: Topical and systemic photoprotection.
mesh_terms: D000279:Administration, Cutaneous; D006801:Humans; D011835:Radiation Protection / Q000379:methods*; D013472:Sunlight / Q000009:adverse effects*; D013473:Sunscreening Agents / Q000008:administration & dosage* / Q000494:pharmacology
chemical_list: D013473:Sunscreening Agents