1. Personal communication;Arnold, K.,1974
2. Unpublished data;Bachir, G.S.,1974
3. Oesophageal acid-perfusion in the diagnosis of pre-cordial pain;Bennett, J.R.; Atkinson, N.;Lancet,1966
4. A clinical test for esophagitis;Bernstein, L.M.; Baker, L.A.;Gastroenterology,1958
5. Oesophageal stricture after partial gastrectomy;Cox, K.R.;British Journal of Surgery,1961