1. Van der Poll T., Romijn J.A., Wiersinga W.M., Sauerwein H.P. Tumor necrosis factor: a putative mediator of the sick euthyroid syndrome in man. J. Clin. Endocrinol. Metab. 71: 1576, 1990.
2. Stouthard J.M.L, van der Poll T., Endert E., Bakker P.J.M., Veenhof C.H.N., Sauerwein H.P., Romijn J.A. Effects of acute and chronic administration of interleukin-6 on thyroid hormone metabolism in humans. J. Clin. Endocrinol. Metab. 79: 1342, 1994.
3. Boelen A., Platvoet-ter Schiphorst M.C., Wiersinga W.M. Association between serum interleukin-6 and serum 3,5,3’-triiodothyronine in nonthyroidal illness. J. Clin. Endocrinol. Metab. 77: 1695, 1993.
4. Bartalena L., Brogioni S., Grasso L., Velluzi F., Martino E. Relationship of the increased serum interleukin-6 concentration to changes of thyroid function in nonthyroidal illness. J Endocrinol Invest 17: 269, 1994.
5. Boelen A., Platvoet-ter Schiphorst M.C., Wiersinga W.M. Soluble cytokine receptors and the low 3,5,3’-triiodothyronine syndrome in patients with nonthyroidal disease. J Clin Endocrinol Metab. 80: 971, 1995.