Effect of letrozole cotreatment in progestin-primed ovarian stimulation on IVF/ICSI outcomes in POSEIDON group 3 and 4 poor responders: a retrospective cohort study
Eur J Med Res. 2025 Apr 22;30(1):314. doi: 10.1186/s40001-025-02393-x. ABSTRACT BACKGROUND: For poor ovarian response patients, obtaining higher number of transferable and high-quality embryos is …