Naulyong C, Taweemonkongsap T, Leewansangtong S, Soontrapa S. Percutaneous Nephrolithotomy vs Open Pyelolithotomy for Renal Pelvis Calculi. Siriraj Med J [internet]. 1999 Jul. 1 [cited 2026 Sep. 28];51(7):506-13. available from: https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/247435