title: Topical tretinoin for photoaged skin.
mesh_terms: D006801:Humans; D008297:Male; D008875:Middle Aged; D010781:Photography / Q000379:methods; D012867:Skin / Q000187:drug effects*; D013472:Sunlight / Q000009:adverse effects; D014212:Tretinoin / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D014212:Tretinoin