1. Department of Family Medicine, McMaster University, Hamilton, ON, Canada
2. Department of Communication, University of Massachusetts Amherst, Amherst, MA, USA
3. School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
4. Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Radiology and Health Research Methods, Evidence & Impact, McMaster University, Hamilton, ON, Canada
5. Department of Obstetrics and Gynecology, McMaster University, Hamilton, ON, Canada