Threatened abortion: A risk factor for poor pregnancy outcome, a population-based screening study

Joshua L. Weiss, Fergal D. Malone, John Vidaver, Robert H. Ball, David A. Nyberg, Christine H. Comstock, Gary D. Hankins, Richard L. Berkowitz, Susan J. Gross, Lorraine Dugoff, Ilan E. Timor-Tritsch, Mary E. D'Alton