Haltbakk J1, Hanestad B R1, Hunskaar S1 1. Dep. of Publ. Health & Prim. Health Care, University of Bergen

Sereika S1, Engberg S1, Engberg R1 1. University of Pittsburgh

Coyne K1, Zhou Z2, Versi E2 1. MEDTAP International, Bethesda, MD, 2. Pharmacia Corporation, Peapack, NJ, USA

Pleil A M1, Kelleher C J2, Allen L E1, Ray Reese P3 1. Pharmacia Limited, High Wycombe, UK, 2. Guy's & St. Thomas' Hospital Trust, London, UK, 3. Consultant, North Carolina, USA

Dallosso H1 1. University of Leicester

Tincello D1, Walker A2 1. University of Leicester, 2. Interstitial Cystitis Support Group

Rendeli C1, Padua L1, Ausili E1, Girardi E1, Caliandro P1, Salvaggio E1 1. Catholic University- Pol. A. Gemelli

Jünemann K P1, Halaska M2, Rittstein T 3, Bruenjes R4 1. Dept. Urology, University Hospital Kiel, 2. Dept. Gynecol., University Prague, Czech Republic, 3. Dept. Gynecol., Kladno, Czech Republic, 4. Apogepha Arzneimittel GmbH, Dresden

Cappellano F1, Bertapelle P 2, Catanzaro F1, Del Popolo G3, Cervigni M4, Spinelli M5, Curti P6, Minardi D7, Leone G8, Giardiello G9, GINS Group O B10 1. Multimedica S.S. Giovanni, 2. CTO-CRF-MA Torino, 3. Careggi Firenze, 4. IDI Nancy Roma, 5. Osp. Magenta, 6. Policlinico B. Roma, Verona, 7. Policlinico U 1° Ancona, 8. Osp Civitanova M, 9. Medtronic Italia, 10. GINS group Italy

Norton C1, Burch J1, Kamm M A1 1. St Mark's Hospital

Schraffordt S1, Vervest H2, Bisseling T2 1. Meander Medical Centre, 2. St. Elisabeth Hospital Tilburg

Robinson D1, Anders K1, Cardozo L1, Bidmead J 1 1. Dept of Urogynaecology, Kings College Hospital