Sutantio, A. A., B. W. Soetojo, and R. Dwipayana. “Epidural Spinal Cord Compression Metastasis from Nasopharyngeal Carcinoma: Report of a Rare Case”. International Surgery Journal, vol. 10, no. 3, Feb. 2023, pp. 467-70, doi:10.18203/2349-2902.isj20230501.