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BACKGROUND Eliciting an endogenous LH surge by GnRH-agonist for the induction of final oocyte maturation may be more physiological compared with the administration of HCG. However, the efficacy of(More)
OBJECTIVE To assess the effect of altering the timing of hCG administration on ongoing pregnancy rates in patients stimulated with recombinant FSH (rec-FSH) and GnRH antagonists for IVF. DESIGN(More)
Four hundred eighty-two patients undergoing single ET with GnRH-antagonist/recFSH protocol were analyzed. The incidence of premature luteinization (P above 1.5 ng/mL on the day of hCG administration)(More)