Joo, Y.C., Ok, W.K., Baik, S.H., Kim, H.J., Kwon, O.S. and Kim, K.H. (2012) Removal of a Vertebral Metastatic Tumor Compressing the Spinal Nerve Roots via a Single-Port, Transforaminal, Endoscopic Approach under Monitored Anesthesia Care. Pain Physician, 15, 297-302.