Affiliation: | 1. Department of Medical Imaging, McMaster University Medical Center, 1200 Main St. W., Hamilton, ON, Canada L8N 3Z5;2. Department of Medical Imaging, University Health Network and Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada;3. Department of Obstetrics and Gynecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada |