title: Development of the periodontium: an electron microscopic study.
mesh_terms: D000539:Alveolar Process / Q000098:blood supply; D000818:Animals; D025021:Cementogenesis; D003094:Collagen; D005347:Fibroblasts / Q000254:growth & development; D051379:Mice; D008854:Microscopy, Electron; D010519:Periodontium / Q000166:cytology / Q000254:growth & development*; D012159:Reticulum; D013194:Staining and Labeling; D014083:Tooth Germ / Q000032:analysis
chemical_list: D003094:Collagen