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Illia Koval, Wiktor Kubik, Bartłomiej Czarnecki, Jan Nowak, Bartosz Zwoliński, Kacper Sukiennicki, Wirginia Bertman, Natalia Kołdej, Zuzanna Kępczyńska, Katarzyna Szewczyk, Kamil Borysewicz, Klaudia Romejko, Barbara Kujawa. VITAMIN D3 DEFICIENCY AND THE EFFECTIVENESS OF SUBLINGUAL SUPPLEMENTATION – A REVIEW OF CLINICAL STUDIES. IJITSS [Internet]. 2025Dec.20 [cited 2026Jan.2];2(4(48). Available from: https://rsglobal.pl/index.php/ijitss/article/view/4215