Disrupted Vitamin D Metabolism in Hepatocellular Carcinoma: Free and Bioavailable 25(OH)D as Novel Biomarkers of Hepatic Reserve and Clinical Risk. - Osredkar, Joško; Rakusa, Matej; Jerin, Aleš; Štabuc, Borut; Zaplotnik, Martin; Štupar, Saša; Siuka, Darko (Molecules, 2026)