Central venous oxygen saturation vs. oxygen extraction ratio in septic shock resuscitation: Which metric is more informative? - Chalkias, Athanasios; Katsifa, Konstantina; Amanetopoulou, Stavroula; Nodarou, Aikaterini; Lampropoulos, Petros; Thiveos, Ioannis; Sakellaridis, Konstantinos; Grammatikopoulou, Varvara; Prekates, Athanasios; Tselioti, Paraskevi (Anesthesiology & Perioperative Science, 2026)