the authors previously have shown that both supraphysiologic dosages of human chorionic gonadotropin ( hcg ) and physiologic dosages of human luteinizing hormone ( hlh ) can reinitiate sperm production in short-term ( four months ) gonadotropin-suppressed normal men who have prepubertal fsh levels .
C0018062
human chorionic gonadotropin
C0018061
gonadotropin