19. Kuba, J., Wiedermann, M., Komenda, S. Zur problematik der 99mp 6 ~ pertechnetatspeicherung in der Schilddrtse. 20. Atkins, H.L., Klopper, J.F. Nuclearmed. 6: 53-64, 1967. Measurement of thyroid uptake of technetium-99m measured by the gamma camera and computer. Roentgenol; Radium Ther. and Nucl. Med. 118: 831-835, 21. Am. J. 1973. Shimmins, J., Hilditch, T., Harden, R.McG., Alexander, W.D., Thyroidal uptake and turnover of the pertechnetate ion in normal and hyperthyroid subjects. 22. J. Clin. Endocrinol. 28: 575-581, 1968. Castronovo, F.P. Jr., Ring R. III The rapid determination of the early 99m. pertechnetate thyroid uptake using a multichannel analyzer. Int. J. Appl. Rad. and Isotopes 24: 297-299, 1973. 23. Smith, E.M. Internal dose calculation for 99MP~e, J, Nucl. Med. 6: 231-251, 1965. 24, Atkins, H.L., Bradley-Moore, P.R., Ansari, A., Lambrecht, R.M., Wolf, AP. A comparison of the thyroidal uptake of radioiodine administered intra- venous Ly (1237) and orally (1311). 25. Higgins, H.P. Submitted for publication. The ten-minute uptake of r}31; a clinical study and comparison with other tests of thyroid function. J. Clin. End. and Metab. 19: 557-566, 1959. 26. Kriss, J.P. Uptake of radioactive iodine after intravenous adminis- tration of tracer doses. 27. J. Clin. End. and Metab. 11:289-297, 1951. Larsson, L., Jonsson, L., Continuous registration of thyroid uptake after intravenous injection of radioactive iodine. Acta. Radiol. 43: 81-88, 1955. 28. Rosenthall, L. of radioiodine. 500713b4 A fifteen minute test of the rate of thyroid trapping J. Nucl. Med. 5: 657-663, 1964.