CHARACTERISTICS OF THE EXCHANGE OF MICROELEMENTS - COPPER, IRON, ZINC FOR ACUTE INTESTINAL INFECTIONS OF VARIOUS GENESIS ON THE BACKGROUND OF CHRONIC NUTRITIONAL DISORDERS OF VARIOUS SEVERITY IN CHILDREN OF THE FIRST TWO YEARS OF LIFE. zr. 2023;4(06):79-85. Accessed July 14, 2025. https://zetarepo.com/index.php/zr/article/view/1005