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Cryptosporidium parvum: prevalence and risk factors in calv..:

Fitz Sánchez, Emiliano ; Rosario Cruz, Rodrigo ; Hernández Ortiz, Rubén...
Anderson, B.C. Patterns of shedding ofcryptosporidialoocysts in Idaho calves. Journal American Veterinary Medical Association,v.178, n.9,p.982-984, 1981..  , 2013