Loumaye, E.

phase luteal luteal phase patient antagonist group oocyte oocyte maturation level agonist gnrh agonist hormone study stimulation maturation randomization pregnancy cycle r-hcg gnrh antagonist lh surge gnrh antagonists auc /d duration follicle surge support lh levels luteal phase characteristics gnrh agonist group post randomization metab characteristic corpus oocyte retrieval randomized luteum fertilization induction endocrinol fertil nonsupplemented luteal phase reprod corpus luteum function gnrh antagonist cotreatment corpus luteum function number gonadotropin lh release luteal support steril range concentration exogenou length luteal phase length fauser difference gonadotropin-releasing hormone antagonist nonsupplemented center pregnancy rates recovery value women injection luteinizing cessation r-hcg group becker blood sampling cotreatment p levels retrieval parameter administration serum gonadotrophin luteolysi