Boiechko, F. F., L. O. Boiechko, N. F. Yeremeiva, and I. V. Shmigol. “The Humoral Immunity State under Conditions of Additional Vitaminization”. Cherkasy University Bulletin: Biological Sciences Series, vol. 352, no. 19, Jan. 2016, https://bio-ejournal.cdu.edu.ua/article/view/97.