A further approach to the establishment of a fistula in the vas deferens of rams.
D000818:Animals; D002404:Catheterization; D004822:Epididymis; D005402:Fistula; D008297:Male; D012611:Scrotum / Q000601:surgery; D012661:Semen; D012756:Sheep; D014649:Vas Deferens / Q000601:surgery*