ASSESSING THE BORON NUTRITIONAL STATUS BY ANALYZING ITS CUMMULATIVE FREQUENCY DISTRIBUTION IN THE HAIR AND WHOLE BLOOD СтатьяPrejac J., Skalny A.A., Grabeklis A.R., Uzun S., Mimica N., Momčilović B.Journal of Trace Elements in Medicine and Biology. Том 45. 2018. С. 50-56