1. Luteal phase support Fertility and Sterility
Alan S Penzias, M.D. 
Fertility and Sterility 
Volume 77, Issue 2, Pages (February 2002)
DOI: /S (01)

2. FIGURE 1
(A), Implantation rate, assessed over 1,675 IVF cycles, in relation to the type of progesterone preparation used for luteal phase support; vaginal suppositories □, intramuscular injection ■, Crinone® ▨. (B), Clinical pregnancy rate in patients who received either Crinone 8% vaginal progesterone gel or another type of progesterone preparation for luteal phase support; non-Crinone® □, Crinone® ■. Reproduced with permission (25).
Penzias. Luteal phase support. Fertil Steril 2002.
Fertility and Sterility  , DOI: ( /S (01) )