2015. The efficacy, safety & outcomes of laparoscopic pyelolithotomy (retroperitoneoscopic pyelolithotomy) and its comparison with percutaneous nephrolithotomy. International Journal of Biomedical and Advance Research. 6, 4 (Apr. 2015), 363–367. DOI:https://doi.org/10.7439/ijbar.v6i4.1968.