Zaichick, V. . . “Trace Element Contents in Thyroid of Patients With Diagnosed Nodular Goiter Investigated by Instrumental Neutron Activation Analysis”. Jour Med Resh and Health Sci, vol. 4, no. 8, Aug. 2021, pp. 1405-17, doi:10.52845/JMRHS/2021-4-8-5.