1. Saint Louis University School of Medicine; Saint Louis University Department of Obstetrics and Gynaecology; 1025A Commodore Drive Richmond Heights Missouri USA 63117
2. University of Louisville School of Medicine; 3646 Warner Ave Louisville Kentucky USA 40207
3. University of Louisville; Kornhauser Health Sciences Library; 500 South Preston Street Louisville KY USA 40202
4. Queen Elizabeth Hospital; Northern Gynaecological Oncology Centre; Sheriff Hill Gateshead Tyne and Wear UK NE9 6SX