Supine versus prone percutaneous nephrolithotomy for complex ctones: a multicenter randomized controlled trial - Perrella, Rodrigo; Vicentini, Fabio C; Paro, Eliane D; Torricelli, Fabio C. M; Marchini, Giovani S; Danilovic, Alexandre; Batagello, Carlos A; Mota. Priscila K. Mota; Nahas, Willian Carlos; Srougi, Miguel (Journal of urology, 2022)