Melo-Silva, M.; Oliveira, F. R.; Rosa, J.; Gemelli, E.; Santos, L.; Bueno-Krawczyk, A. C. de D. <b>Comparison of Nuclear Abnormalities in <i>Astyanax bifasciatus</I&gt; Cuvier, 1819 (Teleostei: Characidae) of Two Sections of Rivers from the Middle Iguaçu. Acta Sci. Biol. Sci. 2018, 40, e40669.