Response to Letter-to-the-Editor regarding "Risk Factors for Early 3-Month Postoperative Mortality in Metastatic Spinal Tumor Surgery: A JASA Multicenter Prospective Study". - Uto T; Kato S; Yokogawa N; Shimizu T; Demura S; Shiratani Y; Suzuki A; Tamai K; Kakutani K; Kanda Y; Tominaga H; Kawamura I; et al. (Spine, 2026)