1. Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, University of Washington, Seattle, Washington
2. Department of Biostatistics, University of Washington, Seattle, Washington
3. Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
4. Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
5. Division of Medical Oncology, University of Washington, Seattle, Washington