RT Journal Article SR Electronic T1 Letter to the Editor: Positioning Rasch Analysis in Modern Clinical Evidence Grading JF International Journal of Spine Surgery JO Int J Spine Surg FD International Society for the Advancement of Spine Surgery SP 8678 DO 10.14444/8678 A1 Baron, David A. YR 2024 UL https://www.ijssurgery.com/content/early/2024/10/28/8678.abstract AB