Bucci S, Umari P, Rizzo M, Pavan N, Liguori G, Barbone F, Trombetta C. Emergency extracorporeal shockwave lithotripsy as opposed to delayed shockwave lithotripsy for the treatment of acute renal colic due to obstructive ureteral stone: a prospective randomized trial. Minerva Urol Nefrol 2018;70(5):526-533.