1. Department of Urology, Sahlgrenska Academy at the University Gothenburg, Institute of Clinical Sciences, Göteborg, Sweden;
2. Department of Urology, Herlev University Hospital, Copenhagen, Denmark;
3. Female Pelvic Medicine & Reconstructive Surgery Center, Catholic University, Rome, Italy;
4. Department of Urology, Hospital de Sao Joao, University of Porto Faculty of Medicine, Porto, Portugal;
5. The Arthur Smith Institute for Urology, Zucker School of Medicine at Hofstra-Northwell, Hempstead, NY, USA;
6. Department of Urology, Stanford University School of Medicine, Stanford, CA, USA;
7. Department of Pathology, County Hospital Ryhov, Jönköping, Sweden;
8. Department of Urology, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Göteborg, Sweden;
9. International Painful Bladder Foundation, Naarden, The Netherlands;
10. Pramukh Swami Medical College, Shree Krishna Hospital, Karamsad, India;
11. Italian Interstitial Cystitis Association, Rome, Italy;
12. Department of Urology, Small Pelvis Clinic, University Hospital Antwerpen, Antwerp, Belgium;
13. Interstitial Cystitis Association of America, San Jose, CA, USA;
14. Department of Urology, Helsinki University Central Hospital, Helsinki, Finland;
15. Department of Urology and Andrology, Indraprastha Apollo Hospitals, New Delhi, India;
16. Department of Urology, Tokyo Women’s Medical University Medical Center East, Tokyo, Japan;
17. Comfortable Urology Network, Ueda Clinic, Kyoto, Japan;
18. Department of Urology, Herlev and Gentofte Hospital, Copenhagen, Denmark;
19. Department of Urology, Drexel University College of Medicine, Philadelphia, PA, USA;
20. Department of Urology, University of Antwerp Faculty of Medicine and Health Sciences, Antwerp, Belgium;
21. Department of Urology, A.I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia