Dias Junior, W.; Mourgués-Schurter, L. R. <b>Circadian Changes in Thyroid Hormones of Piau, <em>Leporinus obtusidens</em> Valenciennes, 1847 (Osteichthyes, Anostomidae) After feeding</b&gt; - DOI: 10.4025/actascibiolsci.V31i4.5814. Acta Sci. Biol. Sci. 2009, 31, 439-446.