1. Conversion of high-response gonadotropin intrauterine insemination cycles to in vitro fertilization results in excellent ongoing pregnancy rates 
Amy M Antman, B.A., Joseph A Politch, Ph.D., Elizabeth S Ginsburg, M.D. 
Fertility and Sterility 
Volume 77, Issue 4, Pages (April 2002)
DOI: /S (01)

2. FIGURE 1
Delivery rates by E2 levels (pg/mL) on the day of hCG administration.
Antman. Conversion of OI/IUI cycles to IVF. Fertil Steril 2002.
Fertility and Sterility  , DOI: ( /S (01) )

3. FIGURE 2
Delivery rates by the number of follicles on the day of hCG administration.
Antman. Conversion of OI/IUI cycles to IVF. Fertil Steril 2002.
Fertility and Sterility  , DOI: ( /S (01) )