1. Intraluminal pH ofduodenum and jejunum in fasting subjects with normal and abnormal gastric or pancreatic function;Benn, A.; Cooke, W.T.;Scand. J. Gastroent,1971
2. Factors influencing the continuous recording of in situ pH of gastric and duodenal contents;Rovelstad, R.A.; Owen, Jr., C.A.; Magath, T.B.;Gastroenterology,1952
3. Continuously recorded pH of gastric and duodenal contents in situ with an evaluation of the efficacy of some antacids in vivo;Tomenius, J.; Williams, G.;Acta med. scand,1960
4. Intraluminal and juxtamucosal duodenal pH;Bircher, J.; Mann, C.V.; Carlson, H.C.; Code, C.F.; Rovelstad, R.A.;Gastroenterology,1965
5. Acidity at different sites in the proximal duodenum of normal subjects and patients with duodenal ulcer;Rhodes, J.; Prestwich, C.J.;Gut,1966