title: [Long-term observations following vitamin-A-acid therapy in leukoplakia of the oral mucosa].
mesh_terms: D005500:Follow-Up Studies; D006801:Humans; D007972:Leukoplakia, Oral / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D014212:Tretinoin / Q000009:adverse effects / Q000627:therapeutic use*; D014801:Vitamin A / Q000031:analogs & derivatives*
chemical_list: D014801:Vitamin A; D014212:Tretinoin
vernacular_title: Langzeitbeobachtungen nach Vitamin-A-Säure-Therapie bei Leukoplakien der Mundschleimhaut