Philip Hanno1, Magnus Fall2, Jane Meijlink3, Jørgen Nordling4. 1. Department of Urology, Stanford University School of Medicine, Stanford, CA, USA. 2. Department of Urology, Institute of Clinical Sciences, Sahigrenska Academy at the University of Gothenburg, Göteborg, Sweden. 3. International Painful Bladder Foundation, Naarden, the Netherlands. 4. Department of Urology, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark.