Al- Kasar, Nothiala R., and Mahdi M. Thuwaini. 2019. “Pathological Changes in Two Species of Aquatic Birds Result from Infection With Some Respiratory Trematodes in Al-Hamar Marsh Thi-Qar Province”. University of Thi-Qar Journal 12 (3):250_267. https://doi.org/10.32792/utj.v12i3.113.