Affiliation: | 1. Coordinator, Early Risk Assessment Program, Calgary, AB, Canada;2. Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada;3. Obstetrics and Gynecology, University of Calgary, Calgary, AB, Canada;4. Calgary Laboratory Services, Calgary, AB, Canada;5. Obstetrics and Gynecology, Columbia University Medical Center, New York, NY, USA |