LOTFI A, YUSEFKHANI M, SAMAVATIAN A, YILMAZ H, TAS CENGIZ Z, VALILOU M. Prevalence of cystic Echinococcosis in slaughtered sheep and goats in Ahar Abattoir, northwest part of Iran. Kafkas Univ Vet Fak Derg,  16 (3):  515-518,  2010. DOI: 10.9775/kvfd.2010.1737