The use of gonadotropin-releasing hormone (GnRH) agonist to induce oocyte maturation after cotreatment with GnRH antagonist in high-risk patients undergoing in vitro fertilization prevents the risk of ovarian hyperstimulation syndrome: a prospective randomized controlled study
aDepartment of Embryology, Infertility and IVF Unit, Royan Institute, Tehran, Iran;bDepartment of Anatomy, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran