Poliakova, L A [Mechanism of the contractile study of the chick embryo amnion]. [electronic resource] - Fiziologicheskii zhurnal SSSR imeni I. M. Sechenova Sep 1971 - 1394-9 p. digital Publication Type: Journal Article ISSN: 0015-329X Subjects--Topical Terms: Amnion--physiologyAnimalsChick EmbryoIn Vitro TechniquesMuscle ContractionMuscle, Smooth--physiologyPotassium--pharmacologySodium--pharmacologyUmbilicus--physiology