1. From the Departments of Obstetrics and Gynecology (Drs. Jaroudi, Arora, Sieck), Pathology and Laboratory Medicine (Dr. Sheth and Julie Carver-Ward, MSc), King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia; Obstetrics and Gynecology (Drs. Hamilton, Willemsen), University Hospital Nijmegen, Geert Grooteplein 14, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands