EUROPEAN JOURNAL OF OBSTETRICS & GYNECOLOGY AND REPRODUCTIVE BIOLOGY, cilt.170, sa.2, ss.452-457, 2013 (SCI-Expanded)
Objective: To investigate the relationship of the progesterone-to-estradiol (P/E-2) ratio on the day of hCG administration with ongoing pregnancy rates in patients with normal ovarian reserve undergoing GnRH antagonist cycles.