title: Factors directing the expression of sympathetic nerve traits in cells of neural crest origin.
mesh_terms: D000818:Animals; D002395:Catecholamines / Q000032:analysis / Q000096:biosynthesis; D002454:Cell Differentiation; D002490:Central Nervous System / Q000196:embryology*; D002642:Chick Embryo; D005724:Ganglia / Q000196:embryology*; D006651:Histocytochemistry; D009924:Organ Culture Techniques; D013564:Sympathetic Nervous System / Q000196:embryology*
chemical_list: D002395:Catecholamines