title: [Immunochemical studies on dental calculus--immunological studies of periodontal disease. 3].
mesh_terms: D003728:Dental Calculus / Q000276:immunology; D003773:Dental Plaque / Q000276:immunology; D005779:Immunodiffusion; D010323:Passive Cutaneous Anaphylaxis; D010510:Periodontal Diseases / Q000276:immunology; D012463:Saliva / Q000276:immunology