1. Departments of Pediatrics and Public Health and Preventive Medicine, Oregon Health and Science University, Portland, Oregon 97239, Brown University School of Medicine, Providence, Rhode Island 02903, ProteoGenix, Inc., Portland, Oregon 97213, Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington 98101, Swedish Medical Center, Seattle, Washington 98122, and Columbia University College of Physicians and Surgeons, New York, New York 10032