HALL, E K Further experiments on the intrinsic contractility of the embryonic rat heart. [electronic resource] - The Anatomical record Feb 1954 - 175-84 p. digital Publication Type: Journal Article ISSN: 0003-276X Standard No.: 10.1002/ar.1091180205 doi Subjects--Topical Terms: AnimalsHeart--physiologyMuscle ContractionRats