Estimating blood oxygen saturation through susceptibility source separation: A new standpoint on quantitative BOLD models. - Chalet L; Rigollet S; Stupar V; Delphin A; Coudert T; Lemasson B; Barbier EL; Mechtouff L; Boutelier T; Canet-Soulas E; Christen T (Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2026)