1. Hamburger, J.I.: Evolution of toxicity in solitary nontoxic autonomously functioning thyroid nodules. J. Clin. Endocrinol. Metab.50:1089, 1980
2. Ladurner, D., Hufler, K.: Hyperthyreoter Knotenkropf. In Chirurgische Endokrinologie, H.-D. Röher, R.A. Wahl, editors. Stuttgart-New York, Thieme, 1983
3. Gemsenjäger, E., Staub, J.J., Gerard, J., Heitz, P.: Preclinical hyperthyroidism in multinodular goiter. J. Clin. Endocrinol. Metab.43:810, 1976
4. Josef, K., Mahlstedt, J., Gonnermann, R., Herbert, K., Welcke, U.: Early recognition and evaluation of the risk of hyperthyroidism in thyroid autonomy in an endemic goitre area. J. Mol. Med.4:21,1980
5. Peter, H.J., Studer, H., Forster, R., Gerber, H.: The pathogenesis of “hot” and “cold” follicles in multinodular goiters. J. Clin. Endocrinol. Metab.55:941, 1982