Safety of fertility preservation by ovarian stimulation with letrozole and gonadotropin in patients with breast cancer: a prospective controlled study with subgroup analysis
Kim J, Turan V, Oktay K. Safety of fertility preservation by ovarian stimulation with letrozole and gonadotropin in patients with breast cancer: a prospective controlled study with subgroup analysis. Fertility And Sterility 2014, 102: e32. DOI: 10.1016/j.fertnstert.2014.07.118.Peer-Reviewed Original Research