title: Novel diagnostic tests of ectopic pregnancy, if at first you don't succeed...
authors.affiliation: Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA. Electronic address: kbarnhart@obgyn.upenn.edu.
authors.forename: Kurt T
authors.initials: KT
authors.lastname: Barnhart
mesh_terms: D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis* / Q000652:urine*; D011258:Pregnancy Tests; D011261:Pregnancy Trimester, First / Q000652:urine*