1. Bristol Urological InstituteBristolUnited Kingdom
2. University of GroningenUniversity Medical Center GroningenGroningenThe Netherlands
3. University of Bristol and Bristol Urological InstituteBristolUnited Kingdom
4. University of AarhusAarhusDenmark
5. International Painful Bladder FoundationThe Netherlands
6. Musgrove Park HospitalTauntonUnited Kingdom
7. University of New South WalesSydneyAustralia
8. First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
9. University of PennsylvaniaPhiladelphiaPennsylvania