Diagnosis and Treatment of Preoperative Anemia in Patients Undergoing Cardiac Surgery: A 2-Center Historical Cohort Study. - Hazen YJJM; Noordzij PG; Smoor RM; Gerritse BM; Scohy TV; Bramer S; Sarton EY; Rettig TCD (Journal of cardiothoracic and vascular anesthesia, 2026)