1. McMaster University; Department of Obstetrics and Gynaecology; 1200 Main St West Room 4D14 Hamilton Ontario Canada L8N 3Z5
2. McMaster University; Obstetrics and Gynaecology; 400 Mader's Cove Road RR1 Mahone Bay Nova Scotia Canada B3J 2EO
3. St Mary's Hospital; IOW Healthcare NHS Trust; Parkhurst Road Newport Isle of Wight UK PO30 5TG