title: Editorial comment.
authors.affiliation: Androfert, Male Reproduction Referral Center, Campinas, Brazil.
authors.forename: Sandro C
authors.initials: SC
authors.lastname: Esteves
mesh_terms: D053713:Azoospermia / Q000209:etiology*; D006801:Humans; D007248:Infertility, Male / Q000209:etiology*; D008297:Male; D020554:Sperm Injections, Intracytoplasmic; D053625:Sperm Retrieval / Q000706:statistics & numerical data; D014646:Varicocele / Q000150:complications* / Q000601:surgery*