KEY WORDS: computer-assisted semen analysis; cryopreserv'ation; donor sperm bank; semen.
~TRODUCTIONInfertility is the inability to conceive after 1 year of unprotected intercourse. Male factors alone are responsible for infertility in 30% of infertile couples. The first documented human artificial insemination with donor (AID) spermatozoa was accomplished in 1884
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