title: The development of the conduction system in the mouse embryo heart.
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D005865:Gestational Age; D006321:Heart / Q000196:embryology*; D051379:Mice; D009206:Myocardium / Q000648:ultrastructure; D012849:Sinoatrial Node / Q000196:embryology* / Q000648:ultrastructure