Initial intramembraneous osteogenesis in vitro.
D000818:Animals; D002454:Cell Differentiation; D005865:Gestational Age; D008648:Mesoderm / Q000648:ultrastructure; D051379:Mice; D009924:Organ Culture Techniques; D010006:Osteoblasts / Q000648:ultrastructure; D010012:Osteogenesis; D012886:Skull / Q000196:embryology / Q000648:ultrastructure; D013997:Time Factors