Is it worthwhile to operate on subclinical right varicocele in patients with grade II-III varicocele in the left testicle - Pasqualotto, Fabio Firmach; Lucon, Antonio Marmo; Goes, Plinio Moreira de; Sobreiro, Bernardo Passos; Hallak, Jorge; Pasqualotto, Eleonora Bedin; Arap, Sami (Journal of Assisted Reproduction and Genetics, 2005)