A., M. G., D. I. C. M., J. L. H., and K. J. F. C. “Presacral Tumor, Experience of Two Cases in Mexico and Review of the Literature”. International Journal of Research in Medical Sciences, vol. 12, no. 3, Feb. 2024, pp. 950-4, doi:10.18203/2320-6012.ijrms20240546.