W. M. Tunbridge, D. C. Evered, R. Hall, D. Appleton, M. Brewis, F. Clark, J. G. Evans, E. Young, T. Bird and P. A. Smith, “The Spectrum of Thyroid Disease in a Community: The Whickham Survey,” Journal of Clinical Endocrinology, Vol. 7, No. 6, 1977, pp. 481-493. doi:10.1111/j.1365-2265.1977.tb01340.x
 M. P. J. Vanderpump, W. M. G. Tunbridge, J. M. French, et al., “The Incidence of Thyroid Disease in the Community. A Twenty Year Follow-Up of the Whickham Survey,” Clinical Endocrinology, Vol. 43, No. 1, 1995, pp. 55-68.
 U. M. Kabadi and R. Cech, “Normal Thyroxine and Elevated Thyrotropin Concentrations: Evolving Hypothyroidism or Persistent Euthyroidism with Reset Thyrostat,” Journal of Endocrinological Investigation, Vol. 20, No. 6, 1997, pp. 319-326.
 M. Helfand, “Preventive Services Task Force. Screening for Subclinical Thyroid Dysfunction in Nonpregnant Adults: A Summary of the Evidence for the US Preventive Services Task Force,” Annals of Internal Medicine, Vol. 140, No. 2, 2004, pp. 128-141.
 M. I. Surks, E. Ortiz, G. H. Daniels, C. T. Sawin, N. F. Col, R. H. Cobin, J. A. Franklyn, J. M. Hershman, K. D Burman, M. A. Denke, C. Gorman, R. S. Cooper and N. J. Weissman, “Subclinical Thyroid Disease: Scientific Review and Guidelines for Diagnosis and Management,” The Journal of American Medical Association, Vol. 291, No. 2, 2004, pp. 228-238. doi:10.1001/jama.291.2.228
 N. F. Col, M. I. Surks and G. H. Daniels, “Subclinical Thyroid Disease: Clinical Applications,” The Journal of American Medical Association, Vol. 291, No. 2, 2004, pp. 239-243. doi:10.1001/jama.291.2.239
 J. G. Hollowell, N. W. Staehling, W. D. Flanders, W. H. Hannon, E. W. Gunter, C. A. Spencer and L. E. Braverman, “Serum TSH T4, and Thyroid Antibodies in the United States Population (1988 to 1994): National Health and Nutrition Examination Survey (NHANES III),” Journal of Clinical Endocrinology & Metabolism, Vol. 87, No. 2, 2002, pp. 489-499. doi:10.1210/jc.87.2.489
 J. Karmisholt, S. Andersen and P. Laurberg, “Variation in Thyroid Function in Subclinical Hypothyroidism: Importance of Clinical Follow-Up and Therapy,” European Journal of Endocrinology, Vol. 164, No. 3, 2011, pp. 317-323. doi:10.1530/EJE-10-1021
 M. J. Boomsma, H. P. Bijl and J. A. Langendijk, “Radiation-Induced Hypothyroidism in Head and Neck Cancer Patients: A Systematic Review,” Radiotherapy & Oncology, Vol. 99, No. 1, 2011, pp. 1-5. doi:10.1016/j.radonc.2011.03.002
 B. Gopinath, J. J. Wang, A. Kifley, J. R. Wall, C. J. Eastman, S. R. Leeder and P. Mitchell, “Five-Year Incidence and Progression of Thyroid Dysfunction in an Older Population,” European Journal of Internal Medicine, Vol. 40, No. 9, 2010, pp. 642-649. doi:10.1111/j.1445-5994.2009.02156.x
 G. Ceresini, S. Morganti, M. Maggio, E. Usberti, I. Fiorino, A. Artoni, G. Teresi, S. Belli, V. Ridolfi, G. Valenti and G. P. Ceda, “Subclinical Thyroid Disease in Elderly Subjects,” Acta BioMedica, Vol. 81, No. S1, pp. 31-36.
 D. S. Cooper, R. Halpern, L. C. Wood, A. A. Levin and E. C. Ridgway, “L-Thyroxine Therapy in Subclinical Hypothyroidism. A Double-Blind, Placebo-Controlled Trial,” Annals of Internal Medicine, Vol. 101, No. 1, 1984, pp. 18-24.
 E. Nystr?m, K. Caidahl, G. Fager, C. Wikkels?, P. A. Lundberg and G. Lindstedt, “A Double-Blind Cross-Over 12-Month Study of L-Thyroxine Treatment of Women with ‘Subclinical’ Hypothyroidism,” Journal of Clinical Endocrinology, Vol. 29, No. 1, 1988, pp. 63-75. doi:10.1111/j.1365-2265.1988.tb00250.x
 E. C. Ridgway, D. S. Cooper, H. Walker, D. Rodbard and F. Maloof, “Peripheral Responses to Thyroid Hormone before and after L-Thyroxine Therapy in Patients with Subclinical Hypothyroidism,” Journal of Clinical Endocrinology & Metabolism, Vol. 53, No. 6, 1981, pp. 1238-1242. doi:10.1210/jcem-53-6-1238
 M. Derwahl and H. Studer, “Nodular Goiter and Goiter Nodules: Where Iodine Deficiency Falls Short of Explaining the Facts,” Experimental and Clinical Endocrinology & Diabetes, Vol. 109, No. 5, 2001, pp. 250-260. doi:10.1055/s-2001-16344
 W. Reinhardt, M. Luster, K. H. Rudorff, C. Heckmann, S. Petrasch, S. Lederbogen, R. Haase, B. Saller, C. Reiners, D. Reinwein and K. Mann, “Effect of Small Doses of Iodine on Thyroid Function in Patients with Hashimoto's Thyroiditis Residing in an Area of Mild Iodine Deficiency,” European Journal of Endocrinology, Vol. 139, No. 1, 1998, pp. 23-28. doi:10.1530/eje.0.1390023
 C. C. Chow, D. I. Phillips, J. H. Lazarus and A. B. Parkes, “Effect of Low Dose Iodide Supplementation on Thyroid Function in Potentially Susceptible Subjects: Are Dietary Iodide Levels in Britain Acceptable?” Journal of Clinical Endocrinology, Vol. 34, No. 5, 1991, pp. 413-416. doi:10.1111/j.1365-2265.1991.tb00314.x
 Z. Sang, P. P. Wang, Z. Yao, J. Shen, B. Halfyard, et al., “Exploration of The Safer Upper Level of Iodine Intake in Euthyroid Chinese Adults: A Randomized Double Blind Trial,” The American Journal of Clinic Nutrition, Vol. 95, No. 2, 2012, pp. 367-373.