title: Time required for heterogenous induction in chick embryo ectoderm.
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D002642:Chick Embryo; D046508:Culture Techniques; D004475:Ectoderm; D008099:Liver / Q000196:embryology; D009420:Nervous System / Q000196:embryology*; D013997:Time Factors