Rubio , D. G., and J. B. A. . Abraham. “Analysis of the Clinical Efficacy and Safety of Percutaneous Nephrolithotomy in Patients With Anatomical Variations: A Single Center Retrospective Study”. Philippine Journal of Urology, vol. 33, no. 02, Nov. 2023, https://pjuonline.com/index.php/pju/article/view/175.