Cut-off values of the Johnsen score and Copenhagen index as histopathological prognostic factors for postoperative semen quality in selected infertile patients undergoing microsurgical correction of bilateral subclinical varicocele - Teixeira, Thiago Afonso; Pariz, Juliana Risso; Dutra, Robertson Torres; Saldiva, Paulo Hilário Nascimento; Costa, Elaine; Hallak, Jorge (Translational andrology and urology, 2019)