title: [Effectiveness of vitamin A acid in acne].
mesh_terms: D000152:Acne Vulgaris / Q000188:drug therapy*; D000293:Adolescent; D000328:Adult; D055598:Chemical Phenomena; D002621:Chemistry; D005500:Follow-Up Studies; D006801:Humans; D013997:Time Factors; D014212:Tretinoin / Q000627:therapeutic use*
chemical_list: D014212:Tretinoin
vernacular_title: Badania nad skutecznościa działania kwasu witaminy A u chorych z tradzikiem.