Topics in Gastroenterology

The oesophagus : Assessment of oesophageal function A. Ogilvie ; Atypical chest pain C. E. Pope ; Management of oesophagitis T. C. B. Dehn Duodenal ulcer : Mechanisms of acid secretion M. Parsons ; Pathophysiology of duodenal ulcer W. D. W. Rees & A. B. Dowd ; Prostaglandin therapy R. P. Walt ; Omeprazole-mechanisms of action and pharmacology E. Carlsson, P. Lindberg, H. Mattson & B. Wallmark ; Omeprazole-clinical aspects A. Walan . Intestinal immunology and infection : Cellular aspects of gastrointestinal immunity G. McPherson ; Allergic disorders of the intestine P. J. Milla ; Immunodeficiency I. Ross ; Lymphomas of the small intestine H. J. F. Hodgson ; Viruses and diarrhoea C. R. Madeley ; E Coli- pathogenic mechanisms D. Candy, S. Knutton & A. S. McNeish ; Is Entamoeba histolytica a pathogen or a commensal? P. G. Sargeaunt ; Immunity and schistosomiasis P. Hagan . Ano-rectal disease : Pathophysiology of the ano-rectum N. W. Read & W. H. Sum ; Obstructive defaecatory disorders D. C. Bartolo ; Management of incontinence N. Mortenson ; Piles and pruritus M. G. W. Kettlewell .