%0 Journal Article %T The serum estradiol/oocyte ratio in patients with breast cancer undergoing ovarian stimulation with letrozole and gonadotropins %A Aeran Seol %A Byung Chul Jee %A Chang Suk Suh %A Dayong Lee %A Jung Ryeol Lee %A Seok Hyun Kim %A Seul Ki Kim %A Yoo Jin Shim %J Archive of "Obstetrics & Gynecology Science". %D 2018 %R 10.5468/ogs.2018.61.2.242 %X To investigate the patterns of estradiol-oocyte ratio (EOR) and estradiol-mature oocyte ratio (EMOR) in patients with breast cancer undergoing controlled ovarian stimulation (COS) using letrozole and gonadotropins for fertility preservation %K Breast neoplasms %K Fertility preservation %K Aromatase inhibitors %K Estradiol %K In vitro fertilization %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5854904/