title: [Ultrastructural and immunohistochemical studies on acute necrotizing ulcerative gingivitis].
mesh_terms: D000208:Acute Disease; D000328:Adult; D005881:Gingiva / Q000276:immunology / Q000382:microbiology / Q000648:ultrastructure; D005892:Gingivitis, Necrotizing Ulcerative / Q000276:immunology / Q000382:microbiology / Q000473:pathology*; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis; D008264:Macrophages / Q000473:pathology; D008297:Male; D009504:Neutrophils / Q000473:pathology; D013144:Spirochaetales / Q000302:isolation & purification
chemical_list: D007136:Immunoglobulins