CAJÚ, F. M.; QUEIROZ, G. C. D.; TORRES, S. M.; TENÓRIO, B. M.; SILVA JÚNIOR, V. A. <b>Opioid system manipulation during testicular development: results on sperm production and sertoli cells population</b&gt; - doi: 10.4025/actascibiolsci.v33i2.5940. Acta Scientiarum. Biological Sciences, v. 33, n. 2, p. 219-225, 8 fev. 2011.