title: Ultrastructural studies of human gingiva. IV. Anchoring fibrils and perforations of the basal lamina in chronic periodontitis.
mesh_terms: D001485:Basement Membrane / Q000648:ultrastructure*; D003238:Connective Tissue / Q000648:ultrastructure*; D003239:Connective Tissue Cells; D003593:Cytoplasm / Q000648:ultrastructure; D004847:Epithelial Cells; D004848:Epithelium / Q000648:ultrastructure; D005881:Gingiva / Q000648:ultrastructure*; D006801:Humans; D008854:Microscopy, Electron; D010518:Periodontitis / Q000473:pathology*; D012270:Ribosomes / Q000648:ultrastructure