1. Luteal support with intravaginal progesterone increases clinical pregnancy rates in women with polycystic ovary syndrome using letrozole for ovulation induction 
Christopher P. Montville, M.D., Maram Khabbaz, M.D., Mira Aubuchon, M.D., Daniel B. Williams, M.D., Michael A. Thomas, M.D. 
Fertility and Sterility 
Volume 94, Issue 2, Pages (July 2010)
DOI: /j.fertnstert
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2. Figure 1
Pregnant patients using CC. Percentage of IUI and IC cycles per treatment group (%, n). The number of IUI cycles in the P group was significantly higher than the number of IC cycles. ∗P<.02, difference of proportion.
Fertility and Sterility  , DOI: ( /j.fertnstert )
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3. Figure 2
Pregnant patients using letrozole. Percentage of IUI and IC cycles per treatment group (%, n). No statistically significant difference was noted by difference of proportion.
Fertility and Sterility  , DOI: ( /j.fertnstert )
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4. Figure 3
Pregnancy rates in IUI cycles. ∗P<.01, difference of proportion.
Fertility and Sterility  , DOI: ( /j.fertnstert )
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