21.   Each patient underwent restorative proctocolectomy, the pelvic reservoir or ileum being anastomosed end to end to the anal sphincter without any stripping of the anal mucosa.

22.   Twelve patients had quadruplicated ileal reservoirs, four had duplicated reservoirs, and two patients underwent straight ileoanal anastomoses.

23.   All patients routinely underwent clinical assessment of continence before operation.

24.   Twenty three patients underwent a sphincterotomy and four needle knofe papillotomy.

25.   All patients underwent an abdominal ultrasound examination before endoscopic retrograde cholangiopancreatography.

26.   This patient had not undergone a sphincterotomy before the insertion of the endoprosthesis.

27.   Sixteen patients underwent simultaneous ambulatory oesophageal and gastric pH monitoring.

28.   Sixteen patients underwent simultaneous gastric and oesophageal pH monitoring.

29.   The day after the permeability test, patients on NSAIDs underwent gastroduodenoscopy with biopsy.

30.   Ten patients underwent endoscopy with biopsy.