title: Chronic periodontal disease: a review of possible immunopathology, and the validity of the Arthus, Shwartzman and delayed hypersensitivity responses as model systems.
mesh_terms: D001183:Arthus Reaction; D006968:Hypersensitivity, Delayed; D010510:Periodontal Diseases / Q000276:immunology; D012790:Shwartzman Phenomenon