title: Varicocele and subfertility.
mesh_terms: D006801:Humans; D007248:Infertility, Male / Q000209:etiology*; D008026:Ligation; D008297:Male; D009845:Oligospermia / Q000209:etiology; D014646:Varicocele / Q000150:complications* / Q000175:diagnosis / Q000601:surgery