we conducted a randomized , double-blind study comparing intranasal gonadotropin-releasing hormone ( 1.2 mg per day for 28 days ) with parenteral human chorionic gonadotropin ( 3300 iu per week for four weeks ) in the treatment of cryptorchidism in 33 boys one to five years old ( 29 with unilateral and 4 with bilateral cryptorchidism ) .
C0018062
human chorionic gonadotropin
C0010417
cryptorchidism