Knutson, T L 3,5,3'-triiodo-L-thyronine uptake and development of metamorphic competence by Xenopus laevis embryonic tissues. [electronic resource] - The Journal of experimental zoology Sep 1971 - 45-57 p. digital Publication Type: Journal Article ISSN: 0022-104X Standard No.: 10.1002/jez.1401780108 doi Subjects--Topical Terms: AnimalsAnuraCell Differentiation--drug effectsChromatography, Thin LayerEmbryo, Nonmammalian--anatomy & histologyHindlimb--embryologyHyoid Bone--embryologyIntestines--embryologyJaw--embryologyLarvaMaxillofacial DevelopmentMetamorphosis, BiologicalNose--embryologyRadioisotopesRadiometryTriiodothyronine--administration & dosageXenopus--embryology