Association Between Early Heparin Prophylaxis and Risk of Venous Thromboembolism Through Two Months After Spine Fusion for Spinal Metastasis: A Retrospective Cohort Study of United States Academic Health Centers. - Baumann AN; Trager RJ; Anaspure O; Strony JT; Muralidharan A; Sanda T; Hoffmann JC (Global spine journal, 2025)