1. Impact of luteal phase support on pregnancy rates in intrauterine insemination cycles: a prospective randomized study 
Ahmet Erdem, M.D., Mehmet Erdem, M.D., Songül Atmaca, M.D., Ismail Guler, M.D. 
Fertility and Sterility 
Volume 91, Issue 6, Pages (June 2009)
DOI: /j.fertnstert
Copyright © 2009 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Flow chart through trial of luteal phase progesterone support versus no support for ovarian stimulation in intrauterine insemination cycles.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2009 American Society for Reproductive Medicine Terms and Conditions