title: Beginning endochondral ossification in embryonic mouse radii.
mesh_terms: D000818:Animals; D001857:Bone Matrix / Q000196:embryology; D002113:Calcification, Physiologic; D002356:Cartilage / Q000196:embryology*; D003094:Collagen; D006652:Histological Techniques; D008722:Methods; D051379:Mice / Q000196:embryology*; D008854:Microscopy, Electron; D010012:Osteogenesis; D011884:Radius / Q000166:cytology / Q000196:embryology*
chemical_list: D003094:Collagen