Objective. To test if serumhCGlevels themorning after the ovulatory hCG injection correlate with (1) retrieval efficiency, (2) oocyte\nmaturity, (3) embryo quality, (4) pregnancy, and/or (5) time to implantation in patients undergoing in vitro fertilization (IVF) with\nintracytoplasmic sperm injection (ICSI). Design. Retrospective cohort analysis. Setting. University-based IVF clinic. Patient(s). All\nIVF/ICSI cycles from April 2005 to February 2008 whose hCG administration was confirmed (
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