twenty patients entered a randomized , crossover study of purified follicle-stimulating hormone ( pure-fsh ) or human menopausal gonadotropin ( hmg ) superovulation , 2 ampules per day after pituitary desensitization with the luteinizing hormone-releasing hormone ( lh-rh ) analogue buserelin ( d-ser tbu6 lh-rh 1-9 ethylamide ) nasal spray .
C0006456
buserelin
C0023610
lh-rh