[Evaluation of influence of selenium, copper, zinc and iron concentrations on thyroid gland size in school children with normal ioduria].

Unlabelled: Proper diet with regard to quantity and quality of meals is of vital importance for normal development and functioning of the organism. There are many proofs that environmental factors play an important role in the pathogenesis of goiter. Iodine deficit in diet is best known of all factors contributing to goiter.