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Financial support and sponsorship
None.

Conflicts of interest
All authors declared that there are no conflicts of interest.

Ethical approval and consent to participate
All studies were approved by the Ethical Committees of the Medical Radiological Research Centre, Obninsk.
All procedures performed in studies involving human participants were in accordance with the ethical
standards of the institutional and/or national research committee and with the 1964 Helsinki declaration
and its later amendments or comparable ethical standards.

Consent for publication
Not applicable.

Copyright
© The Author(s) 2018.

REFERENCES
1. Kilfoy BA, Zheng T, Holford TR, Han X, Ward MH, et al. International patterns and trends in thyroid cancer incidence, 1973-2002. Cancer
Causes Control 2009;20:525-31.
2. Jemal A, Siegel R, Xu J, Ward E. Cancer statistics, 2010. CACancer J Clin 2010;60:277-300.
3. Pellegriti G, Frasca F, Regalbuto C, Squatrito S, Vigneri R. Worldwide increasing incidence of thyroid cancer: update on epidemiology and
risk factors. J Cancer Epidemiol 2013;2013:965212.
4. Wiltshire JJ, Drake TM, Uttley L, Balasubramanian SP.Systematic review of trends in the incidence rates of thyroid cancer.Thyroid
2016;26:1541-52.
5. Jung KW, Won YJ, Kong HJ, Oh CM, Lee DH, et al. Cancer statistics in Korea: incidence, mortality, survival, and prevalence in 2011.
Cancer Res Treat 2014;46:109-23.
6. Zaichick VYe, Tsyb AF, Vtyurin BM. Trace elements and thyroid cancer. Analyst 1995;120:817-21.
7. Zaichick VYe, Choporov Yu. Determination of the natural level of human intra-thyroid iodine by instrumental neutron activation analysis. J
Radioanal Nucl Chem 1996;207:153-61.
8. Zaichick V, Zaichick S. Normal human intrathyroidal iodine. Sci Total Environ 1997;206:39-56.
9. Zaichick V. Iodine excess and thyroid cancer. J Trace Elem Exp Med 1998;11:508-9.
10. Zaichick V. In vivo and in vitro application of energy-dispersive XRF in clinical investigations: experience and the future. J Trace Elem Exp
Med 1998;11:509-10.
11. Zaichick V, Iljina T. Dietary iodine supplementation effect on the rat thyroid 131I blastomogenic action. In: Anke M, Arnhold W, Bergmann H,
Bitsch R, Dorn W, et al., editors. Die Bedentung der Mengen-und Spurenelemente. 18. Arbeitstangung. Jena: Friedrich-Schiller-Universität;
1998. pp. 294-306.
12. Zaichick VY, Zaichick SV. Energy-dispersive X-ray fluorescence of iodine in thyroid puncture biopsy specimens. J Trace Microprobe Tech
1999;17:219-32.
13. Zaichick V. Human intrathyroidal iodine in health and non-thyroidal disease. In: Abdulla M, Bost M, Gamont S, Arnaud P, Chazot G,
editors. New aspects of trace element research.London and Tokyo: Smith-Gordon and Nishimura; 1999. pp.114-9.
14. Zaichick V. Relevance of, and potentiality for in vivo intrathyroidal iodine determination. Ann NY Acad Sci 2000;904:630-1.
15. Cho BY, Choi HS, Park YJ, Lim JA, Ahn HY, et al.Changes in the clinicopathological characteristics and outcomes of thyroid cancer in
Korea over the past four decades.Thyroid 2013;23:797-804.
16. Shan Z, Chen L, Lian X, Liu C, Shi B, et al.Iodine status and prevalence of thyroid disorders after introduction of mandatory universal salt
iodization for 16 years in China: a cross-sectional study in 10 cities. Thyroid 2016;26:1125-30.
17. Zimmermann MB, Galetti V. Iodine intake as a risk factor for thyroid cancer: a comprehensive review of animal and human studies.Thyroid
Res2015;8:8.
18. McNally RJ, Blakey K, James PW, Gomez Pozo B, Basta NO, et al.Increasing incidence of thyroid cancer in Great Britain, 1976-2005: age-
period-cohort analysis. Eur J Epidemiol 2012;27:615-22.
19. Ganly I, Nixon IJ, Wang LY, Palmer FL, Migliacci JC, et al. Survival from differentiated thyroid cancer: what has age got to do with it?
Thyroid 2015 25:1106-14.
20. Zaichick V. Medical elementology as a new scientific discipline. J Radioanal Nucl Chem 2006;269:303-9.
21. Beyersmann D, Hartwig A. Carcinogenic metal compounds: recent insight into molecular and cellular mechanisms. Arch Toxicol
2008;82:493-512.
22. Martinez-Zamudio R, Ha HC. Environmental epigenetics in metal exposure. Epigenetics2011;6:820-7.