Endometrin for luteal phase support in a randomized, controlled, open-label, prospective in-vitro fertilization trial using a combination of Menopur and Bravelle for controlled ovarian hyperstimulation

To the Editor:

I read with interest the article by Doody, et al (1). The literature support for the need for luteal support in IVF was presented by Daya and Gunby.(2) A recent reanalysis (3) of this meta-analysis suggests the use of vaginal progesterone to be as effective as IM Progesterone. In order to better understand this publication I seek a few points of clarification.