High serum FSH levels on day 7 of stimulation are negatively associated with oocyte retrieval in GnRH antagonist protocols: real-world evidence from 9,969 IVF cycles in China
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By
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Xiu Luo
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Hong Ye
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Li Pei
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Yao He
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Fujie Li
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Wei Han
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Shun Xiong
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Shubiao Han
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Jingyu Li
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Xiaodong Zhang
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Guoning Huang
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May 5, 2026
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0 min