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1 The effect of udenafil (zydena) on the fertilization and early embryo development in mice
Keun Soo Cheon, Jae Chul Sim, Hoe Saeng Yang
Korean J Obstet Gynecol.2011;54(9):508-516.   Published online 2011 September 26     DOI: http://dx.doi.org/10.5468/KJOG.2011.54.9.508
      

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