Goonewardene L.A, Z. Wang, E. K. Okine, M. A. Price, Z. Wang, J. A. Basarab, L. A. Goonewardene, D. H. Crews, Jr, P. Ramsey, K.L. Lyle, N. French, E.K. Okine and S.S. Moore
Journal of Animal and Veterinary Advances 4 ( 9 ): 825 - 830 , 2005