[Fate of the yolk-sac endoderm in amphibia (Rana ridibunda)].
D000818:Animals; D001001:Anura / Q000196:embryology*; D002454:Cell Differentiation; D004707:Endoderm / Q000166:cytology*
Sud'ba kletok zheltochnoĭ éntodermy u amfibiĭ (Rana ridibunda)