1. Economics of flexible vs. rigid catheters for intrauterine insemination 
Jcoe Glenn Proctor, B.S., William R. Boone, Ph.D. 
Fertility and Sterility 
Volume 88, Issue 3, Pages (September 2007)
DOI: /j.fertnstert
Copyright © 2007 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Decision tree chart for flexible catheter vs. rigid catheter. NP = not pregnant.
Proctor. Economics of IUI catheters. Fertil Steril 2007.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2007 American Society for Reproductive Medicine Terms and Conditions