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Eur J Endocrinol 176: R325\u2013R337.","DOI":"10.1530\/EJE-16-0276"},{"key":"2","doi-asserted-by":"crossref","unstructured":"2 Vejbjerg P, Knudsen N, Perrild H, Laurberg P, Carl\u00e9 A, et al. (2009) Lower prevalence of mild hyperthyroidism related to a higher iodine intake in the population: prospective study of a mandatory iodization programme. Clin Endocrinol (Oxf) 71: 440\u2013445.","DOI":"10.1111\/j.1365-2265.2008.03493.x"},{"key":"3","doi-asserted-by":"crossref","unstructured":"3 Vadiveloo T, Donnan PT, Cochrane L, Leese GP (2011) The Thyroid Epidemiology, Audit, and Research Study (TEARS): the natural history of endogenous subclinical hyperthyroidism. J Clin Endocrinol Metab 96: E1\u2013E8.","DOI":"10.1210\/jc.2010-0854"},{"key":"4","doi-asserted-by":"crossref","unstructured":"4 Bj\u00f8rndal MM, Sandmo Wilhelmsen K, Lu T, Jorde R (2008) Prevalence and causes of undiagnosed hyperthyroidismin an adult healthy population. The Troms\u00f8 study. J Endocrinol Invest 31: 856\u2013860.","DOI":"10.1007\/BF03346431"},{"key":"5","doi-asserted-by":"crossref","unstructured":"5 Hollowell JG, Staehling NW, Flanders WD, Hannon WH, Gunter EW, et al. (2002) Serum TSH, T<sub>4<\/sub>, and thyroid antibodies in the United States population (1988 to 1994): National Health and Nutrition Examination Survey (NHANES III). J Clin Endocrinol Metab 87: 489\u2013499.","DOI":"10.1210\/jcem.87.2.8182"},{"key":"6","doi-asserted-by":"crossref","unstructured":"6 Konno N, Yuri K, Taguchi H, Miura K, Taguchi S, et al. (1993) Screening for thyroid diseases in an iodine sufficient area with sensitive thyrotrophin assays, and serum thyroid autoantibody and urinary iodide determinations. Clin Endocrinol (Oxf) 38: 273\u2013281.","DOI":"10.1111\/j.1365-2265.1993.tb01006.x"},{"key":"7","doi-asserted-by":"crossref","unstructured":"7 Kasagi K, Takeuchi R, Misaki T, Kousaka T, Miyamoto S, et al. (1997) Subclinical Graves\u2019 disease as a cause of subnormal TSH levels in euthyroid subjects. J Endocrinol Invest 20: 183\u2013188.","DOI":"10.1007\/BF03346900"},{"key":"8","doi-asserted-by":"crossref","unstructured":"8 Schouten BJ, Brownlie BE, Frampton CM, Turner JG (2011) Subclinical thyrotoxicosis in an outpatient population - predictors of outcome. Clin Endocrinol (Oxf) 74: 257\u2013261.","DOI":"10.1111\/j.1365-2265.2010.03908.x"},{"key":"9","doi-asserted-by":"crossref","unstructured":"9 Das G, Ojewuyi TA, Baglioni P, Geen J, Premawardhana LD, et al. (2012) Serum thyrotrophin at baseline predicts the natural course of subclinical hyperthyroidism. Clin Endocrinol (Oxf) 77: 146\u2013151.","DOI":"10.1111\/j.1365-2265.2012.04345.x"},{"key":"10","doi-asserted-by":"crossref","unstructured":"10 D\u00edez JJ, Iglesias P (2009) An analysis of the natural course of subclinical hyperthyroidism. Am J Med Sci 337: 225\u2013232.","DOI":"10.1097\/MAJ.0b013e318187e16d"},{"key":"11","doi-asserted-by":"crossref","unstructured":"11 Rosario PW (2010) Natural history of subclinical hyperthyroidism in elderly patients with TSH between 0.1 and 0.4 mIU\/l: a prospective study. Clin Endocrinol (Oxf) 72: 685\u2013688.","DOI":"10.1111\/j.1365-2265.2009.03696.x"},{"key":"12","doi-asserted-by":"crossref","unstructured":"12 Zhyzhneuskaya S, Addison C, Tsatlidis V, Weaver JU, Razvi S (2016) The natural history of subclinical hyperthyroidism in Graves\u2019 disease: the rule of thirds. Thyroid 26: 765\u2013769.","DOI":"10.1089\/thy.2015.0470"},{"key":"13","doi-asserted-by":"publisher","unstructured":"13 Yoshimura Noh J, Miyazaki N, Ito K, Takeda K, Hiramatsu S, et al. (2008) Evaluation of a new rapid and fully automated electrochemiluminescence immunoassay for thyrotropin receptor autoantibodies. 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