Comparative Study Between Ultrasonic And Fluoroscopic Guided PCNL In Blood Loss And Stone-Free Rate. Journal of Pharmaceutical Negative Results, [S. l.], v. 11, n. 1, p. 99–105, 2020. DOI: 10.47750/vxa76g72. Disponível em: https://www.pnrjournal.com/index.php/home/article/view/11024.. Acesso em: 4 jun. 2026.