title: Trophoblast persists despite lack of sex-steroid support following ovum donation.
authors.affiliation: Department of Obstetrics and Gynecology, Columbia Presbyterian Medical Center, College of Physicians and Surgeons, Columbia University, New York, New York 10032, USA.
authors.forename: S R
authors.initials: SR
authors.lastname: Lindheim
authors.forename: M V
authors.initials: MV
authors.lastname: Sauer
mesh_terms: D018997:Chorionic Gonadotropin, beta Subunit, Human / Q000097:blood; D004958:Estradiol / Q000008:administration & dosage; D005260:Female; D006801:Humans; D008593:Menopause; D008875:Middle Aged; D018587:Oocyte Donation; D011247:Pregnancy; D011256:Pregnancy Outcome; D011374:Progesterone / Q000008:administration & dosage; D014327:Trophoblasts / Q000187:drug effects / Q000502:physiology*