sci
hub

to open science
Patterson, J. M., & Finch, W. J. G. (2017). Endoluminal versus Extracorporeal Endourology: Which is Better and at What Cost? European Urology, 72(5), 787–788. doi:10.1016/j.eururo.2017.08.002 
10.1016/j.eururo.2017.08.002