SEMIANIUK, Alina, STOPA, Małgorzata, SZCZĘSNA, Ewa, DRYMLUCH, Paweł, LEWICKA, Wiktoria, SZALIŃSKI, Konrad, SOŚNIAK, Izabella and MOREŃ, Adrianna. Routes of Vitamin B12 Supplementation: Clinical Evidence, Limitations, and Practical Considerations. Quality in Sport. Online. 9 August 2025. Vol. 44, p. 62910. [Accessed 19 December 2025]. DOI 10.12775/QS.2025.44.62910.