title: Tretinoin (Retin-A) therapy of photoaged skin.
authors.affiliation: University of Pennsylvania, Philadelphia.
authors.forename: A M
authors.initials: AM
authors.lastname: Kligman
mesh_terms: D000287:Administration, Topical; D006801:Humans; D015595:Skin Aging / Q000187:drug effects* / Q000502:physiology; D013473:Sunscreening Agents / Q000627:therapeutic use; D014212:Tretinoin / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D013473:Sunscreening Agents; D014212:Tretinoin