Morphogenesis of the beak of the chick embryo: histological, histochemical and autoradiographic studies.
D000818:Animals; D001345:Autoradiography; D001502:Beak / Q000196:embryology* / Q000378:metabolism; D002642:Chick Embryo; D006651:Histocytochemistry; D013460:Sulfur Isotopes; D014316:Tritium
D013460:Sulfur Isotopes; D014316:Tritium