Simões, K., Orsi, A. M., Artoni, S. M. B., Cruz, C. da, Schimming, B. C. and Pinheiro, P. F. F. (2004) “Structural features of the epididymal region of the domestic duck (Anas plathyrynchos)”, Brazilian Journal of Veterinary Research and Animal Science, 41(2), pp. 92-97. doi: 10.1590/S1413-95962004000200003.