Sakashita, B., T. Kawase, K. Kanai, M. Uchino, T. Itazawa, S. Nagasaka, and S. Kina. “Additional Volumetric Modulated Arc Therapy to Vertebral Metastases Abutting the Previously Irradiated Site”. Global Journal of Medical and Clinical Case Reports, vol. 1, no. 1, May 2014, pp. 001-4, doi:10.17352/2455-5282.000001.