1. 1) Jones R, Glover TD. Interrelationships between spermatozoa, the epididymis and epididymal plasma. The biology of the male gamete. Biol J Linn Soc 1975; 7 (Suppl. 1): 367-384.
2. 2) Nicander L. On the regional histology and cytochemistry of the ductus epididymidis in rabbits. Acta Morphol Neerl Scand 1957; 1: 99-118.
3. 3) Nicander L. Studies on the regional histology and cytochemistry of the ductus epididymidis in stallions, rams and bulls. Acta Morphol Neerl Scand 1958; 1: 337-362.
4. 4) Chandler JA, Sinowatz F, Pierrepoint CG. The ultrastructure of dog epididymis. Urol Res 1981; 9: 33-44.
5. 5) Takano H. Qualitative and quantitative histology and histogenesis of the mouse epididymis, with special reference on the regional difference. Acta Anat Nippon 1980; 55: 573-587.