Malmsten U G H1, Milsom I2, Molander U1, Norlén L J3, Irwin D E4
1. Geriatric Medicine, Sahlgrenska Academy at Göteborg University, Göteborg Sweden, 2. Obstetrics and Gynaecology, Sahlgrenska Academy at Goteborg University, Goteborg, Sweden, 3. Urology, Karolinska University Hospital, Stockholm, Sweden, 4. Epidemiology, University of North Carolina, Chapel Hill, NC, USA