ABSTRACT
In conventional in-vitro fertilization (IVF) treatment, infertile women are treated with gonadotropin-releasing hormone (GnRH)-agonist or -antagonist in combination with gonadotropins for approximately 2 or 3 weeks to induce the development of ovarian follicles, because the number of oocytes retrieved determines the number of embryos available for transfer, which in turn directly affects the pregnancy rate.
