Wegst, A V Cumulated activities determined from biodistribution data in pregnant rats ranging from 13 to 21 days gestation. I. Tc-99m pertechnetate. [electronic resource] - Medical physics - 841-5 p. digital Publication Type: Journal Article ISSN: 0094-2405 Standard No.: 10.1118/1.595347 doi Subjects--Topical Terms: AnimalsFemaleFetus--metabolismGestational AgeMaternal-Fetal ExchangePlacenta--metabolismPregnancyRadiation DosageRatsRats, Inbred F344Sodium Pertechnetate Tc 99mTechnetium--metabolismTissue Distribution