5Robaire B,Hermo L.Efferent ducts,epididymis,and vas deferens:structure,functions,and their regulation.In:Knobil E,Neill J,eds.The Physiology of Reproduction[ M ].New York:Raven Press,1988.999-1080.
6Zini A,Defreitas G,Freeman M,et al.Varicocele is associated with abnormal retention of cytoplasmic droplets by human spermatozoa[ J].Fertil Steri1,2000 ,74(3):461-464.
7Mohamed M. Anatomy of the spermatie venous plexns (pampiniform plexus) in men with and without varicoceles: Intraoperative venographic study[J]. J Urol, 1992,147 : 1285 - 1289.
8Graif M, Hauser R, Hirhebein A, et al. Varicocele and the testicular - renalvenous route : hemodynamic Doppler sonographic investigation [ J ]. J U hrasound Med,2000,19:627 -631.
9[2]Mohamed M.Anatomy of the spermatic venous plexns (pampinifor-m plexus) in men with and without varicoceles:Intraoperative venographic study.J Urol,1992,147:1285-1289
10[4]Graif M,Hauser R,Hirhebein A,et al.Varicocele and the testicular-renal venous route:hemodynamic Doppler sonographic investiga-tion.J Ultrasound Med,2000,19:627-631