title: Altered T4/T8 ratios in a patient with severe recurrent aphthous ulcers: report of a case.
mesh_terms: D000328:Adult; D005260:Female; D005455:Fluorescent Antibody Technique; D006801:Humans; D007958:Leukocyte Count; D012008:Recurrence; D013281:Stomatitis, Aphthous / Q000276:immunology* / Q000473:pathology; D006377:T-Lymphocytes, Helper-Inducer / Q000473:pathology*; D050378:T-Lymphocytes, Regulatory / Q000473:pathology*