Nekhlopochyn, O. S.; Vasylieva, I. G.; Chopyk, N. G.; Verbov, V. V.; Cheshuk, I. V.; Vorodi, M. V. Evaluation of the Efficacy of Combined Vitamin D3 and K2 Therapy in Reducing Implant-Associated Complication Risk and Improving Spinal Fusion Stability. Ukr Neurosurg J 2025, 31, 10-27.