Robert F. Casper, M.D.  Fertility and Sterility 

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Basic understanding of gonadotropin-releasing hormone–agonist triggering  Robert F. Casper, M.D.  Fertility and Sterility  Volume 103, Issue 4, Pages 867-869 (April 2015) DOI: 10.1016/j.fertnstert.2014.12.129 Copyright © 2015 American Society for Reproductive Medicine Terms and Conditions

Figure 1 Mean (± standard error of the mean) serum LH concentrations (•—•) in the group of 9 women who were given GnRH-a, compared with hCG (o—o) and LH (Δ - Δ) concentrations in the group of 9 women who were given hCG for follicular maturation. The arrow indicates the time of GnRH-a and hCG administration. The figure is from (10), with permission. Fertility and Sterility 2015 103, 867-869DOI: (10.1016/j.fertnstert.2014.12.129) Copyright © 2015 American Society for Reproductive Medicine Terms and Conditions