Research Article

	Hepatitis C virus updated. S Sherlock and G Dusheiko Gut 1991; 32: 965-967. doi:10.1136/gut.32.9.965 [PDF] [Request Permissions]
	Incidence of heterotopic gastric mucosa in the upper oesophagus. F Borhan-Manesh and J B Farnum Gut 1991; 32: 968-972. doi:10.1136/gut.32.9.968 [Abstract] [PDF] [Request Permissions]
	Detection of Helicobacter pylori infection of the gastric mucosa by measurement of gastric aspirate ammonium and urea concentrations. W D Neithercut, A Milne, R S Chittajallu, A M el Nujumi, and K E McColl Gut 1991; 32: 973-976. doi:10.1136/gut.32.9.973 [Abstract] [PDF] [Request Permissions]
	Weekend treatment with 20 and 40 mg omeprazole: effect on intragastric pH, fasting and postprandial serum gastrin, and serum pepsinogens. L C Baak, J B Jansen, I Biemond, and C B Lamers Gut 1991; 32: 977-982. doi:10.1136/gut.32.9.977 [Abstract] [PDF] [Request Permissions]
	Physical activity at work and duodenal ulcer risk. B D Katschinski, R F Logan, M Edmond, and M J Langman Gut 1991; 32: 983-986. doi:10.1136/gut.32.9.983 [Abstract] [PDF] [Request Permissions]
	Acute upper gastrointestinal bleeding in patients with AIDS: a relatively uncommon condition associated with reduced survival. F Parente, M Cernuschi, L Valsecchi, G Rizzardini, M Musicco, A Lazzarin, and G Bianchi Porro Gut 1991; 32: 987-990. doi:10.1136/gut.32.9.987 [Abstract] [PDF] [Request Permissions]
	Trophic action of epidermal growth factor on human duodenal mucosa cultured in vitro. D N Challacombe and E E Wheeler Gut 1991; 32: 991-993. doi:10.1136/gut.32.9.991 [Abstract] [PDF] [Request Permissions]
	Effects of urogastrone-epidermal growth factor on intestinal brush border enzymes and mitotic activity. R A Goodlad, K B Raja, T J Peters, and N A Wright Gut 1991; 32: 994-998. doi:10.1136/gut.32.9.994 [Abstract] [PDF] [Request Permissions]
	Placental ferritin in coeliac disease: relation to clinical stage, origin, and possible role in the pathogenesis of malignancy. G Dinari, I Zahavi, H Marcus, and C Moroz Gut 1991; 32: 999-1003. doi:10.1136/gut.32.9.999 [Abstract] [PDF] [Request Permissions]
	Idiopathic bile acid malabsorption--a review of clinical presentation, diagnosis, and response to treatment. A J Williams, M V Merrick, and M A Eastwood Gut 1991; 32: 1004-1006. doi:10.1136/gut.32.9.1004 [Abstract] [PDF] [Request Permissions]
	Effect of protein and lactulose on the production of gamma-aminobutyric acid by faecal Escherichia coli. H al Mardini, B al Jumaili, C O Record, and D Burke Gut 1991; 32: 1007-1010. doi:10.1136/gut.32.9.1007 [Abstract] [PDF] [Request Permissions]
	Deoxyribonucleic acid amplification and hybridisation in Crohn's disease using a chlamydial plasmid probe. B H McGarity, D A Robertson, I N Clarke, and R Wright Gut 1991; 32: 1011-1015. doi:10.1136/gut.32.9.1011 [Abstract] [PDF] [Request Permissions]
	Smoking, humoral immunity, and ulcerative colitis. E D Srivastava, J R Barton, S O'Mahony, D I Phillips, G T Williams, N Matthews, A Ferguson, and J Rhodes Gut 1991; 32: 1016-1019. doi:10.1136/gut.32.9.1016 [Abstract] [PDF] [Request Permissions]
	Diversion colitis: histological features in the colon and rectum after defunctioning colostomy. J M Geraghty and I C Talbot Gut 1991; 32: 1020-1023. doi:10.1136/gut.32.9.1020 [Abstract] [PDF] [Request Permissions]
	Inflammatory bowel disease in the Bedouin Arabs of southern Israel: rarity of diagnosis and clinical features. H S Odes, D Fraser, P Krugliak, D Fenyves, G M Fraser, and A D Sperber Gut 1991; 32: 1024-1026. doi:10.1136/gut.32.9.1024 [Abstract] [PDF] [Request Permissions]
	Validation of organ culture in colonic adaptation to surgical manipulation. G V Appleton, E E Wheeler, D N Challacombe, and R C Williamson Gut 1991; 32: 1027-1030. doi:10.1136/gut.32.9.1027 [Abstract] [PDF] [Request Permissions]
	Relation between electromyography and anal manometry of the external anal sphincter. M Sørensen, T Tetzschner, O O Rasmussen, and J Christiansen Gut 1991; 32: 1031-1034. doi:10.1136/gut.32.9.1031 [Abstract] [PDF] [Request Permissions]
	Failure of cholinergic stimulation to induce a secretory response from the rectal mucosa in cystic fibrosis. J Hardcastle, P T Hardcastle, C J Taylor, and J Goldhill Gut 1991; 32: 1035-1039. doi:10.1136/gut.32.9.1035 [Abstract] [PDF] [Request Permissions]
	A 10 year single centre experience of percutaneous and endoscopic extraction of bile duct stones with T tube in situ. E Nussinson, S R Cairns, D Vaira, J F Dowsett, and R R Mason Gut 1991; 32: 1040-1043. doi:10.1136/gut.32.9.1040 [Abstract] [PDF] [Request Permissions]
	Effect of ursodeoxycholic acid treatment on ileal absorption of bile acids in man as determined by the SeHCAT test. S Eusufzai, S Ericsson, T Cederlund, K Einarsson, and B Angelin Gut 1991; 32: 1044-1048. doi:10.1136/gut.32.9.1044 [Abstract] [PDF] [Request Permissions]
	Inhibitory effect of a cholecystokinin antagonist on the proliferative response of the pancreas to pancreatobiliary diversion. P Watanapa, E F Efa, K Beardshall, J Calam, C E Sarraf, M R Alison, and R C Williamson Gut 1991; 32: 1049-1054. doi:10.1136/gut.32.9.1049 [Abstract] [PDF] [Request Permissions]
	Cereal chemistry, molecular biology, and toxicity in coeliac disease. R P Sturgess, H J Ellis, and P J Ciclitira Gut 1991; 32: 1055-1060. doi:10.1136/gut.32.9.1055 [PDF] [Request Permissions]
	Ursodeoxycholic acid in chronic liver disease. J S de Caestecker, R P Jazrawi, M L Petroni, and T C Northfield Gut 1991; 32: 1061-1065. doi:10.1136/gut.32.9.1061 [Abstract] [PDF] [Request Permissions]
	Appropriateness of cholecystectomy in the United Kingdom--a consensus panel approach. E A Scott and N Black Gut 1991; 32: 1066-1070. doi:10.1136/gut.32.9.1066 [Abstract] [PDF] [Request Permissions]
	Double blind, placebo controlled trial of metronidazole in Crohn's disease. L Sutherland, J Singleton, J Sessions, S Hanauer, E Krawitt, G Rankin, R Summers, H Mekhjian, N Greenberger, and M Kelly Gut 1991; 32: 1071-1075. doi:10.1136/gut.32.9.1071 [Abstract] [PDF] [Request Permissions]
	Self-dilatation of oesophageal strictures. M H Robinson and M W Gear Gut 1991; 32: 1076-1078. doi:10.1136/gut.32.9.1076 [Abstract] [PDF] [Request Permissions]
	Elemental diet in the management of Crohn's disease during pregnancy. K Teahon, M Pearson, A J Levi, and I Bjarnason Gut 1991; 32: 1079-1081. doi:10.1136/gut.32.9.1079 [Abstract] [PDF] [Request Permissions]
	Transplantation of a donor liver with haemochromatosis: evidence against an inherited intrahepatic defect. P C Adams, C N Ghent, D R Grant, J V Frei, and W J Wall Gut 1991; 32: 1082-1083. doi:10.1136/gut.32.9.1082 [Abstract] [PDF] [Request Permissions]
	Androgen associated hepatocellular carcinoma with an aggressive course. D Gleeson, M J Newbould, P Taylor, R F McMahon, B C Leahy, and T W Warnes Gut 1991; 32: 1084-1086. doi:10.1136/gut.32.9.1084 [Abstract] [PDF] [Request Permissions]

Letter

	Gastrointestinal intraluminal pH. D J Frommer Gut 1991; 32: 1087. doi:10.1136/gut.32.9.1087 [PDF] [Request Permissions]
	Sulphasalazine and gastrointestinal transit. S S Crao Gut 1991; 32: 1087. doi:10.1136/gut.32.9.1087-a [PDF] [Request Permissions]

Book Review

	Diagnosis of acute abdominal pain M Hobsley Gut 1991; 32: 1087. doi:10.1136/gut.32.9.1087-b [PDF] [Request Permissions]
	Medical laser endoscopy D C Colin Jones Gut 1991; 32: 1087-1088. doi:10.1136/gut.32.9.1087-c [PDF] [Request Permissions]
	Chronic pancreatitis Joan M Braganza Gut 1991; 32: 1088. doi:10.1136/gut.32.9.1088 [PDF] [Request Permissions]