Association of Vitamin B12 Status with Polysomnographic Parameters and Cardiovascular Disease in Patients with Obstructive Sleep Apnoea. - Bouloukaki, Izolde; Christodoulakis, Antonios; Vouis, Theofilos; Moniaki, Violeta; Mavroudi, Eleni; Kallergis, Eleftherios; Tsiligianni, Ioanna; Schiza, Sophia E. (Nutrients, 2025)