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Journal of Animal and Veterinary Advances 6 ( 1 ): 94 - 98 , 2007
M. Fresno, M.E. Ruiz, A. Arguello, N. Castro and S. Alvarez
Journal of Animal and Veterinary Advances 6 ( 3 ): 310 - 313 , 2007
S. Alvarez, P. Mendez, C. Diaz, H. Briggs and M. Fresno
Journal of Animal and Veterinary Advances 7 ( 3 ): 359 - 363 , 2008