Sedain, Gopal, Ram Shrestha, and Mohan Sharma. “Cervical Osteoblastoma: A Rare Primary Spinal Tumor”. Nepal Journal of Neuroscience 13, no. 1 (October 9, 2016): 51-53. Accessed August 4, 2020. https://www.nepjol.info/index.php/NJN/article/view/15914.