EIRAS, J. DA C.; DIAS, M. L. G. G.; PAVANELLI, G. C.; MACHADO, M. H. Histological studies on the effects of <em>Clinostomum marginatum</em> (Digenea, Clinostomidae) in its second intermediate host <em>Loricariichthys platymetopon</em&gt; (Osteichthyes, Loricariidae) of the upper ParanĂ¡ River, Brazi. Acta Scientiarum. Biological Sciences, v. 21, p. 237-241, 17 jul. 2008.