Estimation of fetal age in sheep by measurement of transthoracic , transabdominal, cotyledon length and width by using real- time ultrasonography: H.M AL-Rawi , S.N. Omran , K. A. Hussein. Iraqi J. Vet. Med. [Internet]. 2007 Dec. 31 [cited 2024 May 7];31(2):122-3. Available from: https://jcovm.uobaghdad.edu.iq/index.php/Iraqijvm/article/view/794