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2. Hospital admissions for peptic ulcer during 1958-72;BROWN, R.C.; LANGMAN, M.J.S.; LAMBERT, P.M.;British Medical Journal,1976
3. Surgical aspects of gastro-intestinal haemorrhage;CLARK, C.G.;Postgraduate Medical Journal,1968
4. Early endoscopy of oesophagus, stomach and duodenal bulb in patients with haematemesis and melaena;COTTON, P.B.; ROSENBERG, M.T.; WALDRAM, R.P.L.; AXON, A.T.R.;British Medical Journal,1973
5. Acute upper gastro-intestinal bleeding;DRONFIELD, M.W.; LANGMAN, M.J.S.;British Journal of Hospital Medicine,1978