61.   Each subject participated in three experiments performed in random order, with an interval of at least seven days between each.

62.   ERCP was not performed in these patients.

63.   Detailed studies of gastric function were performed in these six patients and compared with H pylori positive patients with DU and with healthy volunteers.

64.   Detailed studies of gastric function were not performed in the H pylori negative patients with DU in whom an explanation for their ulcer disease was apparent.

65.   Previous anecdotal reports and one study have suggested that colonic investigation should be performed in all patients because of the frequency of dual colonic and upper intestinal disease.

66.   When performed in a patient with upper gastrointestinal symptoms it has a high probability of diagnosis.

67.   Repeat fundoplication for recurrent reflux was performed in two cases during the study.

68.   A colostomy was performed in an attempt to relieve her large bowel symptoms, and subsequently closed.

69.   All studies were performed in the morning after an overnight fast.

70.   The above procedures were performed in a laminar flow hood using conventional sterile techniques.