External validation of nomogram to predict inguinal lymph node metastasis in patients with penile cancer and clinically negative lymph nodes - Maciel, Carlos Vaz de Melo; Machado, Roberto Dias; Morini, Mariana Andozia; Mattos, Pablo Aloisio Lima; Reis, Ricardo dos; Reis, Rodolfo Borges dos; Guimarães, Gustavo Cardoso; Cunha, Isabela Werneck da; Faria, Eliney Ferreira (International Brazilian Journal of Urology, 2019)