Nishal, A. J., J. P. Modi, H. D. Shah, and R. A. Modi. “A Rare Case of Retroperitoneal Leiomyosarcoma”. International Journal of Research in Medical Sciences, vol. 2, no. 1, Jan. 2017, pp. 333-5, https://www.msjonline.org/index.php/ijrms/article/view/2137.