1. Intrauterine insemination results are not affected if Hysterosalpingo Contrast Sonography is used as the sole test of tubal patency 
Judith Hamilton, M.D., Elizabeth Latarche, R.G.N., Claire Gillott, B.Sc., Adrian Lower, M.B., B.S., J.Gedis Grudzinskas, M.D. 
Fertility and Sterility 
Volume 80, Issue 1, Pages (July 2003)
DOI: /S (03)

2. FIGURE 1
Cumulative clinical pregnancy rates per cycle at (A) IUI-D and (B) IUI-H for women evaluated by Hy Co Sy (□), HSG (▵), and lap and dye (♢). (Not statistically significant, IUI-D or IUI-H, log rank test.)
Hamilton. Conception rates at IUI after Hy Co Sy.
Fertility and Sterility  , DOI: ( /S (03) )