F. M. Cajú, G. C. D. Queiroz, S. M. Torres, B. M. Tenório, e V. A. Silva Júnior, “<b>Opioid system manipulation during testicular development: results on sperm production and sertoli cells population</b&gt; - doi: 10.4025/actascibiolsci.v33i2.5940”, Acta Sci. Biol. Sci., vol. 33, nº 2, p. 219-225, fev. 2011.