Recurrent oral ulceration.
D000293:Adolescent; D000906:Antibodies; D002648:Child; D005260:Female; D006801:Humans; D008214:Lymphocytes; D009061:Mouth Mucosa / Q000276:immunology; D013281:Stomatitis, Aphthous / Q000188:drug therapy / Q000209:etiology* / Q000276:immunology
D000906:Antibodies