title: A substance in conditioned medium which enhances the growth of small numbers of chick embryo cells.
mesh_terms: D000818:Animals; D002452:Cell Count; D002455:Cell Division; D002478:Cells, Cultured; D002642:Chick Embryo / Q000166:cytology*; D002852:Chromatography, Ion Exchange; D003470:Culture Media; D006133:Growth Substances / Q000494:pharmacology*; D007700:Kinetics
chemical_list: D003470:Culture Media; D006133:Growth Substances