6Matthews GJ, Goldstein M. A simplified method of epididymal spermaspiration[J].Urology,1996, 47(1):123～125.
7Schlegel PN, Palermo GD, Goldstein M et al. Testicular sperm extractionwith ICSIfor non-obstructive azoospermia[J]. Urology, 1997, 49(3):435～440.
8Silber SJ, Nagy ZP, Liu J et al.Conventional in-vitro fertilizationversusintracytoplamic sperm injection for patients requiring microsurgicalspermaspiration[J]. Hum Reprod,1994,9(9):1705～1709.
9Jow WW, Steckel J, Schlegel PN et al. Motile sperm in human testisbiopsyspecimens[J]. J Androl,1993, 14(3):194～198.
10Ostad M, Liotta D, Ye Z et al. Testicular sperm extraction fornonobstructiveazoospermia: results of a multibiopsy approach with optimized tissuedispersion[J].Urology,1998,52(4):692～697.
