title: Muscle development in vitro. A new conditioned medium effect on colony differentiation.
mesh_terms: D000367:Age Factors; D000818:Animals; D002454:Cell Differentiation; D002478:Cells, Cultured; D002642:Chick Embryo; D002999:Clone Cells; D003094:Collagen; D003470:Culture Media; D046508:Culture Techniques; D009132:Muscles / Q000166:cytology*
chemical_list: D003470:Culture Media; D003094:Collagen