. (2002). -. (e16939). Journal of Veterinary Research, 56(4), e16939
. "-" .e16939 , Journal of Veterinary Research, 56, 4, 2002, e16939.
. (2002). '-', Journal of Veterinary Research, 56(4), e16939.
, "-," Journal of Veterinary Research, 56 4 (2002): e16939,
. -. Journal of Veterinary Research. 2002;56(4):e16939 (In Persian).
