Takahara, Kiyoshi, Naokazu Ibuki, Teruo Inamoto, Hayahito Nomi, Takanobu Ubai, and Haruhito Azuma. 2012. “Predictors of Success for Stone Fragmentation and Stone-Free Rate After Extracorporeal Shockwave Lithotripsy in the Treatment of Upper Urinary Tract Stones”. Urology Journal 9 (3):549-52. https://doi.org/10.22037/uj.v9i3.1590.