title: [Successful management of gingival and oral leukoplakia with non-smoking and vitamin B 2 butyrate esther].
mesh_terms: D006801:Humans; D007972:Leukoplakia, Oral / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D000074606:Smoking Prevention; D014803:Vitamin B Complex / Q000627:therapeutic use*
chemical_list: D014803:Vitamin B Complex