pulsatile intravenous gonadotropin-releasing hormone ( iv-gnrh ) was used in 36 infertile patients with primary amenorrhea ( n = 5 ) , secondary amenorrhea due to hypothalamic chronic anovulation ( hca ) ( n = 22 ) , hyperprolactinemia ( n = 1 ) or polycystic ovary syndrome ( pcos ) ( n = 5 ) , and oligomenorrhea ( n = 3 ) .
C0023610
gonadotropin-releasing hormone
C0020663
hypothalamic