Ichalkaranji, Ravi, et al. , translators. “Spontaneous Rupture of a Calculous Pyonephrotic Kidney INTO the Retroperitoneal Cavity Presenting As Psoas Abscess A Case Report”. International Journal of Biomedical and Advance Research, vol. 5, no. 5, May 2014, pp. 262-3, https://doi.org/10.7439/ijbar.v5i5.740.