Mishra, N., Singh, A. K., Chandra Vamsi Krishna, M., Gautam, U., & Mishra, M. K. (2025). Evaluating upper versus lower calyceal access in percutaneous nephrolithotomy: a prospective comparative study in complex renal calculi. International Journal of Research in Medical Sciences, 13(10), 4268–4272. https://doi.org/10.18203/2320-6012.ijrms20253176