[1] König F, Andersson M, Hotz K, et al. Ten repeat collections for urinary iodine from spot samples or 24-hour samples are needed to reliably estimate individual iodine status in women. J Nutr, 2011; 141, 2049−54. doi:  10.3945/jn.111.144071
[2] Zimmermann MB, Jooste PL, Pandav CS. Iodine-deficiency disorders. Lancet, 2008; 372, 1251−62. doi:  10.1016/S0140-6736(08)61005-3
[3] Satija A, Yu E, Willett WC, et al. Understanding nutritional epidemiology and its role in policy. Adv Nutr, 2015; 6, 5−18. doi:  10.3945/an.114.007492
[4] Ma YH, Tan J, Tan ZJ, et al. Validity and reliability of semiquantitative food frequency questionnaires for assessing nutrient intake among preschool children in northwest China. J Healthc Eng, 2022; 2022, 1677252.
[5] Combet E, Lean MEJ. Validation of a short food frequency questionnaire specific for iodine in UK females of childbearing age. J Hum Nutr Diet, 2014; 27, 599−605. doi:  10.1111/jhn.12219
[6] Wang ZX. Retrospective Dietary Survey-Assisted Food Atlas Measurement. Nanjing: Jiangsu Phoenix Science & Technology Publishing House. 2021. (In Chinese)
[7] Biró G, Hulshof KFAM, Ovesen L, et al. Selection of methodology to assess food intake. Eur J Clin Nutr, 2002; 56 Suppl 2, S25-32.
[8] Althubaiti A. Information bias in health research: definition, pitfalls, and adjustment methods. J Multidiscip Healthc, 2016; 9, 211−7.
[9] Laurberg P, Pedersen KM, Hreidarsson A, et al. Iodine intake and the pattern of thyroid disorders: a comparative epidemiological study of thyroid abnormalities in the elderly in Iceland and in Jutland, Denmark. J Clin Endocrinol Metab, 1998; 83, 765−9. doi:  10.1210/jcem.83.3.4624
[10] Nagata K, Takasu N, Akamine H, et al. Urinary iodine and thyroid antibodies in Okinawa, Yamagata, Hyogo, and Nagano, Japan: the differences in iodine intake do not affect thyroid antibody positivity. Endocr J, 1998; 45, 797−803. doi:  10.1507/endocrj.45.797