The content of vitamin b12 in the thyroid gland and blood serum in connection with the problem of the etiology of endemic goiter

Abstract

Back in 1929-33. the staff of our department, participating in complex expeditions to study water supply, housing conditions and nutrition of the population of the Mari ASSR, the Ural region, Transbaikalia, Gornaya Shoria, found that the main etiological moment in the development of endemic goiter in these areas is iodine deficiency [4]. At the same time, the question arose whether there was a lack or excess of other microelements in this endemic area, and, finally, there was a lack of vitamins.

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