[18] LI Y, TENG D, BA J, et al. Efficacy and safety of long-term universal salt iodization on thyroid disorders: epidemiological evidence from 31 provinces of mainland China[J]. Thyroid, 2020, 30(4): 568-579.
[19] 滕卫平.碘营养与甲状腺疾病[J].内科理论与实践, 2011,5(2):112-117.
[20] ZHAO W, HAN C, SHI X, et al. Prevalence of goiter and thyroid nodules before and after implementation of the universal salt iodization program in mainland China from 1985 to 2014: a systematic review and meta-analysis[J]. PloS One, 2014, 9(10): e109549.