title: Bilateral congenital absence of the vas deferens. Diagnostic features of seminal picture in 42 new cases.
mesh_terms: D000328:Adult; D000013:Congenital Abnormalities / Q000175:diagnosis; D006801:Humans; D007248:Infertility, Male / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D012661:Semen / Q000473:pathology*; D014649:Vas Deferens / Q000002:abnormalities*