Open access
Oct 2026
Trigger-day progesterone-to-mature-oocyte ratio, cycle-level blastocyst yield, and recorded embryo-transfer outcomes: a retrospective cohort study
The progesterone-to-metaphase II oocyte ratio (P/MII) combines trigger-day progesterone with mature oocyte count after retrieval. Its associations may reflect ovarian response and embryo allocation. This retrospective cohort included 7,778 in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI...
Yi-Dong Wei, Yu Xu, Nuan-Fang Wei et al.
· Frontiers in Endocrinology · 0 citations