Bharati, A. S., V. P. Karadkhelkar, and S. S. Zainuddin. “Morphometric Study of Foramen Magnum in East Godavari Region of Andhra Pradesh”. International Journal of Health and Clinical Research, vol. 4, no. 5, Mar. 2021, pp. 294-7, https://ijhcr.com/index.php/ijhcr/article/view/1138.