title: Recurrent aphthous stomatitis.
mesh_terms: D003937:Diagnosis, Differential; D005492:Folic Acid / Q000378:metabolism; D006801:Humans; D007501:Iron / Q000378:metabolism; D013281:Stomatitis, Aphthous / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology / Q000276:immunology / Q000378:metabolism / Q000382:microbiology / Q000473:pathology*; D014805:Vitamin B 12 / Q000378:metabolism
chemical_list: D005492:Folic Acid; D007501:Iron; D014805:Vitamin B 12