Applying of B-mode ultrasound for determining pregnancy by means of measurement of Placentomes Diameter and Fetal Bi-parietal diameter in dairy cows. Iraqi J. Vet. Med. [Internet]. 2019 Jan. 31 [cited 2024 Apr. 30];42(2):90-6. Available from: https://jcovm.uobaghdad.edu.iq/index.php/Iraqijvm/article/view/304