Gomes, R. F. C. (1992) “Etiology of some diseases in calves raised under extensive conditions in the Paranaiba region of Mato Grosso do Sul, Brazil”, Pesquisa Agropecuaria Brasileira, 27(12), pp. 1635–1641. doi: 10.1590/S1678-3921.pab1992.v27.3813.