title: [Preliminary study on T gamma cell assay in recurrent aphthous ulcer, Behcet's disease and lichen planus].
mesh_terms: D001528:Behcet Syndrome / Q000276:immunology*; D006801:Humans; D007958:Leukocyte Count; D008010:Lichen Planus / Q000276:immunology*; D012008:Recurrence; D013281:Stomatitis, Aphthous / Q000276:immunology*; D013601:T-Lymphocytes / Q000145:classification / Q000276:immunology*