1. Fewer than 9 days of estrogen exposure prior to progesterone initiation results in lower pregnancy rates in programmed frozen embryo transfer cycles 
Michael P. Dougherty, MD, Scott J. Morin, MD, Caroline R. Juneau, MD, Shelby A. Neal, MD, Richard T. Scott, MD, HCLD. 
Fertility and Sterility 
Volume 107, Issue 3, Pages e11-e12 (March 2017)
DOI: /j.fertnstert
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2. Graph 1
Fertility and Sterility  , e11-e12DOI: ( /j.fertnstert )
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