Prevalence and Infection Rate of Three Gizzard Nematodes in the Mallard Anas Platyrhynchos L., 1758 Collected in Al-Diwaniya and Diyala Provinces , Central Iraq. IHJPAS. 2016;24(3). Accessed May 4, 2024. https://jih.uobaghdad.edu.iq/index.php/j/article/view/815