1. Health Education North East/Freeman Hospital; Department of Urology; Freeman Road High Heaton Newcastle-upon-Tyne Tyne and Wear UK NE7 7DN
2. Newcastle University; c/o Cochrane Incontinence Group; Institute of Health & Society Baddiley-Clarke Building, Richardson Road Newcastle upon Tyne Tyne and Wear UK NE2 4AX
3. Groote Schuur Hospital and University of Cape Town; Obstetrics and Gynaecology; Anzio Road Observatory Cape Town Western Cape South Africa 8001
4. Newcastle University; Institute of Health and Society; Richardson Road Newcastle Upon Tyne UK NE2 4AX