Tay, C.

oocyte maturation oocyte agonist maturation hyperstimulation study level gnrh agonist group ganirelix hormone surge administration triptorelin treatment phase subject luteal hyperstimulation syndrome leuprorelin stimulation randomized library erasmus mc ovulation patient gnrh antagonist ganirelix gnrh agonists reprod fertil /liter fertilization antagonist steril luteal phase serum follicle midcycle p levels lh surge 0.2 mg triptorelin endocrinol gonadotropin metab exogenou women cycle hcg group syndrome lh rise concentration treatment groups nv organon fauser exogenous fsh support embryo injection number effect induction gnrh antagonist luteal support fsh levels midcycle gonadotropin surge gnrh agonist groups 0.25 mg ganirelix erasmu gonadotrophin-releasing hormone agonist stage body mass index gnrh agonist administration luteinizing hormone oocyte retrieval orgalutran hcg-treated subjects trial blood sampling lh levels center blood