Venkatraman, C., S. Lakshminarasimhan, P. Kumar S., and K. Thuvarapalayam Periasamy. “Metastases to the Craniovertebral Junction: Illustrative Case Report and Review of Literature”. International Journal of Research in Medical Sciences, vol. 6, no. 5, Apr. 2018, pp. 1825-7, doi:10.18203/2320-6012.ijrms20181787.