title: Intrinsic factors influencing the maintenance of contractile embryonic heart cells in vitro. I. The heart muscle conditioned medium effect.
mesh_terms: D000818:Animals; D002452:Cell Count; D002465:Cell Movement; D002469:Cell Separation; D002470:Cell Survival; D002478:Cells, Cultured; D002642:Chick Embryo; D003470:Culture Media; D006321:Heart / Q000196:embryology*; D009206:Myocardium / Q000166:cytology*; D013997:Time Factors
chemical_list: D003470:Culture Media