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2. Suppression of thyrotrophin in the low thyroxine state of severe non-thyroidal illness;Wehmann, R.E.; Gregerman, R.I.; Bums, W.H.; Saral, R.; Santos, G.W.;New Engl J Med
3. Thyroid function in non thyroidal illness;Chopra, I.J.; Herschman, J.M.; Pardridge, W.M.; Nicoloff, J.T.;Ann Int Med,1983
4. Frequency of euthyroid sick syndrome as assessed by free thyroxine index and a direct free thyroxine assay;Vermaak, W.J.H.; Kalk, W.J.; Zakolski, W.J.;Lancet,1983
5. Hyperthyroidism without triiodothyronine excess: An effect of severe non-thyroidal illness;Engler, D.; Donaldson, E.B.; Stockigt, J.R.; Taff, P.;J Clin Endocrinol Metab,1978