REFERENCES
- Andersson, S. & Grossman, M. I. (1965) Profile of pH, pressure, and potential difference at gastro-duodenal junction in man. Gastroenterology 49, 364–371.
- Archambault, A. P., Rovelstad, R. A. & Carlson, H. C. (1967) In situ pH of duodenal bulb contents in normal and duodenal ulcer subjects. Gastroenterology 52, 940–947.
- Bircher, J., Mann, C. V., Carlson, H. C., Code, C. F. & Rovelstad, R. A. (1965) Intraluminal and juxtamucosal duodenal pH. Gastroenterology 48, 472–477.
- Dennis, W. H., Canosa, C. & Rehm, W. S. (1959) Potential difference across the pyloric antrum. Amer. J. Physiol. 197, 19–21.
- Ingram, P. W. & Richards, D. L. (1953) Observations on potential differences of the human stomach by a new electrode and measuring system. Gastroenterology 25, 273–289.
- Rhodes, J., Apsimon, H. T. & Lawrie, J. H. (1966) pH of the contents of the duodenal bulb in relation to duodenal ulcer. Gut 7, 502–508.
- Rovelstad, R. A., Owen, C. A. & Magath, T. B. (1952) Factors influencing the continuous recording of in situ pH of gastric and duodenal contents. Gastroenterology 20, 609–624.