1. Aberdeen Royal Infirmary, NHS Grampian; Department of Orthopaedics; Foresterhill Aberdeen Scotland UK AB25 2ZD
2. Faculty of Medicine, Foudation ABC; Surgery, Divison of Urology; Rua Mediterrâneo, 290, sala 41 São Bernardo do Campo São Paulo Brazil 09750-420
3. University of Sao Paulo; Rua Barata Ribeiro, 414 cj 35 São Paulo São Paulo Brazil 01308000
4. 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
5. Newcastle University; Institute of Health and Society; Richardson Road Newcastle Upon Tyne UK NE2 4AX