title: Secretion of collagen by embryonic neuroepithelium at the time of spinal cord--somite interaction.
mesh_terms: D000367:Age Factors; D000818:Animals; D001345:Autoradiography; D001369:Axons / Q000166:cytology; D002454:Cell Differentiation; D002642:Chick Embryo; D003094:Collagen / Q000378:metabolism*; D003594:Cytoplasmic Granules; D007908:Lens, Crystalline / Q000196:embryology; D008854:Microscopy, Electron; D009454:Neurofibrils; D009489:Neurosecretion; D009924:Organ Culture Techniques; D011392:Proline / Q000378:metabolism; D013116:Spinal Cord / Q000166:cytology / Q000196:embryology / Q000378:metabolism*; D014316:Tritium; D014357:Trypsin
chemical_list: D014316:Tritium; D003094:Collagen; D011392:Proline; D014357:Trypsin