title: Epithelial and connective tissue changes in periodontitis.
mesh_terms: D001485:Basement Membrane; D003094:Collagen; D003238:Connective Tissue / Q000378:metabolism; D004848:Epithelium; D005455:Fluorescent Antibody Technique; D006801:Humans; D010010:Osteoclasts; D010518:Periodontitis / Q000276:immunology / Q000378:metabolism* / Q000473:pathology*; D010950:Plasma Cells; D011134:Polysaccharides / Q000378:metabolism*
chemical_list: D011134:Polysaccharides; D003094:Collagen