Histopathological Study of Esophageal Infection with Gasterophilus pecorum (Diptera: Oestridae) in Persian Onager (Equus hemionus onager) - Hoseini, Seyed Mohammad; Zaheri, Bahram Ali; Adibi, Mohamad Ali; Ronaghi, Hooman; Moshrefi, Amir Hossein (Journal of Arthropod-Borne Diseases, 2017)