Preoperative anemia is associated with increased length of stay in adult spinal deformity surgery: evaluation of a large single-center patient cohort and future suggestions for patient optimization. - Dagli MM; Wathen CA; Golubovsky JL; Ghenbot Y; Arena JD; Santangelo G; Heintz J; Ali ZS; Welch WC; Yoon JW; Arlet V; Ozturk AK (Spine deformity, 2025)