[Causes of variability in the morphological development of bird embryos].
D000818:Animals; D002642:Chick Embryo / Q000254:growth & development*; D005260:Female; D009024:Morphogenesis; D010063:Ovum / Q000166:cytology*
O prichinakh izmenchivosti morfologicheskogo razvitiia zarodysheĭ ptits.