1. Clomiphene citrate at 50: the dawning of assisted reproduction
Eli Y. Adashi, M.D., M.S. 
Fertility and Sterility 
Volume 108, Issue 4, Pages (October 2017)
DOI: /j.fertnstert
Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1 Frank P. Palopoli, M.S. (1922–2016).
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions

3. Figure 2 Robert B. Greenblatt, M.D. (1906–1987).
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions