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Clomiphene citrate and human chorionic gonadotropin treatment before microdissection testicular sperm extraction in non-obstructive azoospermia: a retrospective non-randomized series

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Introduction: Infertility is defined as the inability to conceive after 12 months or longer of regular unprotected sexual intercourse. Azoospermia affects approximately 1% of men, with non-obstructive azoospermia (NOA) accounting... ...