2WATKINS W,NIETO F,BOURNE H,et al.Testicular and epididymal sperm in a microinjection program:methods of retrieval and results[J].Fertil Steril,1997,67 (3):527-535.
3ASLAM I,FISHEL S.Short-term in-vitro culture and cryopreservation of spermatogenic cells used for human in-vitro conception[J].Hum Reprod,1998,13(3):634-638.
4FRANCHIMONT P,MILLET D,VENDRELY E,et al.Relationship between spermatogenesis and serum gonadotropin levels in azoospermia and oligospermia[J].J Clin Endocrinol Metab,1972,34(6):1003-1008.
5TESARIK J,BALABAN B,ISIKLAR A,et al.In-vitro spermatogenesis resumption in men with maturation arrest:relationship with in-vivo blocking stage and serum FSH[J].Hum Reprod.2000,15 (6):1350-1354.
6TURNER TT.On the development and use of alloplastic spermatoceles[J].Fertil Stexil,1988,49(3):387-395.
