Semianiuk, Alina, Małgorzata Stopa, Ewa Szczęsna, Paweł Drymluch, Wiktoria Lewicka, Konrad Szaliński, Izabella Sośniak, and Adrianna Moreń. “Routes of Vitamin B12 Supplementation: Clinical Evidence, Limitations, and Practical Considerations”. Quality in Sport 44 (August 9, 2025): 62910. Accessed February 23, 2026. https://apcz.umk.pl/QS/article/view/62910.