Munawar, Saira, et al. “Incidence of Sacralization of 5th Lumbar and First Coccygeal Vertebrae: An Osteological Study on Dried Sacra of Pakistani Population”. Journal of Fatima Jinnah Medical University, vol. 18, no. 3, Sept. 2024, pp. 138-43, doi:10.37018/AGFP1467.