1. Department of Obstetrics and Gynecology; University of Ottawa; Ottawa Canada
2. Ottawa Hospital Research Institute; Ottawa Canada
3. Department of Obstetrics & Gynecology; Máxima Medical Center; Veldhoven Netherlands
4. Department of Obstetrics and Gynecology; Mount Sinai Hospital, University of Toronto; Toronto Canada
5. Royal Victoria Hospital MUHC Glen Site; McGill University; Toronto Canada