jehan mahmood rajab, R. Abdulmahdi Mohsin, and N. . Saadi Mohammed, “Morphological and Histological Comparative Study between the Lower Respiratory System of Pigeon (Columba livia) and Guinea Pig (Cavia porcellus)”, Med.Sci.Jour.Adv.Res, vol. 5, no. 4, Dec. 2024.