PT - JOURNAL ARTICLE AU - Lewandrowski, Kai-Uwe AU - Lorio, Morgan P. TI - Editors’ Commentary: <em>The Effect of Vitamin D Deficiency on Outcomes of Patients Undergoing Elective Spinal Fusion Surgery: A Systematic Review and Meta-Analysis</em> by Khalooeifard et al AID - 10.14444/8170 DP - 2022 Feb 01 TA - International Journal of Spine Surgery PG - 2--3 VI - 16 IP - 1 4099 - https://www.ijssurgery.com/content/16/1/2.short 4100 - https://www.ijssurgery.com/content/16/1/2.full SO - Int J Spine Surg2022 Feb 01; 16