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To evaluate the appropriate controlled ovarian hyperstimulation (COH) protocol in poor responders, we compared the stimulation characteristics of 21 cycles, which included the ultrashort(More)
OBJECTIVE To evaluate, whether Gonadotropin-releasing hormone-agonist (GnRH-agonist or GnRH-ag) trigger in patients undergoing the ultrashort GnRH-ag/GnRH-antagonist (GnRH-ant) protocol is as(More)