Department of Surgery, Mercy Hospital, Cork
A. Ireland, D. Murphy & G. O’Sullivan
Departments of Surgery and Pathology, Queen’s University, BT9 7AB, Belfast
G. T. Deans, M. Heatley, K. Williamson, P. Hamilton, T. G. Parks, B. J. Rowlands & R. A. J. Spence
Depts. of Surgery and Radiology, St. Vincent’s Hospital, Dublin
M. McNicholls & D. McErlean
Centre for Digestive Diseases, Leeds General Infirmary, LS1 3EX, Leeds
N. R. Hall, W. G. Lewis, B. M. Stephenson, A. I. Mavor & P. J. Finan
University Dept. of Surgery and Pathology, Regional Hospital, Cork
A. F. Horgan, J. Coulter, R. G. Molloy, M. Sheehan & W. O. Kirwan
University Department of Surgery and Medical Genetics, Belfast City Hospital, Lisburn Road, BT9 7AB, Belfast
T. G. Parks, R. A. J. Spence, W. J. Campbell, N. C. Nevin & A. E. Hughes
Royal Berkshire Hospital, Reading
S. Ramesh & R. B. Galland