title: Erratum: Biosimilar FSH preparations- are they identical twins or just siblings?
authors.affiliation: Department of Obstetrics and Gynecology, Infertility and IVF Unit, Chaim Sheba Medical Center (Tel Hashomer), Ramat Gan, 52621, Israel. raoul.orvieto@sheba.health.gov.il.|Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. raoul.orvieto@sheba.health.gov.il.
authors.forename: Raoul
authors.initials: R
authors.lastname: Orvieto
authors.affiliation: Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Dartmouth-Hitchcock Medical Center, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA.
authors.forename: David B
authors.initials: DB
authors.lastname: Seifer