How to cite this article:
Scheffer JAB, Scheffer BB, Aguiar APS, Franca J, Lozano DM, Fanchin R. A comparison of the effects of three different estrogen used for endometrium preparation on the outcome of day 5 frozen embryo transfer cycle. JBRA Assist. Reprod. 2021; 25:104-108 doi:10.5935/1518-0557.20200059