title: [Immunological approach in studies of periodontal diseases, chronic, recurrent aphthae, Behcet's disease].
mesh_terms: D001528:Behcet Syndrome / Q000276:immunology*; D002908:Chronic Disease; D006801:Humans; D010510:Periodontal Diseases / Q000276:immunology*; D012008:Recurrence; D013281:Stomatitis, Aphthous / Q000276:immunology*