“DETERMINATION OF IMMUNOGLOBULIN CONTENT IN BLOOD SERUM IN INFANTS DEPENDING ON THE TYPE OF FEEDING”, Amer. Jour. of Peda. and Educ. Rese., vol. 17, pp. 102–105, Oct. 2023, Accessed: Oct. 24, 2025. [Online]. Available: https://americanjournal.org/index.php/ajper/article/view/1353