by Barri, M.E.S, Onsa, T.O, Elawad, A.A, Elsayed, N.Y, Wasfi, I.A, Bari, E.M.A, Adam, S.E.I. (Dep. Vet. Clin. Studies, Univ., PO Box 32, Khartoum-North (Sudan))
Published in Journal of Comparative Pathology (UK) (1983)