Evaluation of the Efficacy and Safety of Laser versus Cold Knife Urethrotomy in the Management of Patients with Urethral Strictures: A Systematic Review and Meta-Analysis of Randomized Clinical Trials - Torres Castellanos, L; Moreno Bencardino, M C; Bravo-Balado, A; García Mayorga, C A; Vargas Manrique, I; Fernández, N (Urol Int, 2017)