1. Department of Obstetrics and GynaecologyUrogynaecology Division, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo São Paulo Brazil
2. Laboratory of Experimental Surgery and Surgical Research N. S. ChristeasAthens University Medical School Athens Greece
3. Department of Obstetrics and GynaecologyEpsom & St Helier University Hospitals NHS Trust London UK
4. Department of GynecologyUniversity Hospital of Zurich Zurich Switzerland
5. Department of Obstetrics and GynaecologySan Bortolo Hospital Vicenza Italy
6. St George's University of London London UK