University Department of Surgery, Royal Free Hospital & School of Medicine, NW3, London
J. R. Novell, M. J. Osbome, M. C. Winslet & A. A. M. Lewis
Withington Hospital, M20 8LR, Manchester, UK
I. D. Anderson & E. S. Kiff
Department of Surgery, Royal Infirmary, Edinburgh
A. Allison, G. S. Duthiel, A. B. MacGregor & D. C. C. Bartolo
Department of Surgery, Queen Elizabeth Hospital, B15 2TH, Biurmingham, Edgbaston
R. Hutchinson, E. A. Grant, D. Kumar & L. K. Harding
Department of Physics and Nuclear Medicine, Dudley Road Hospital, B18 7QH, Birmingham
A. B. Mostafa & N. Smith
St. Bartholomew’s and St. Mark’s Hospitals, London
P. J. Lunniss, P. G. Barker, P. Armstrong & R. K. S. Phillips
Academic Surgical Unit, St. Mary’s Hospital Medical School, London, U.K
A. G. Tanner, J. Weber, J. W. Harris, G. Glazer & J. R. T. Monson
Academic Unit of Surgery, The General Infirmary, Leeds
A. Kuzu, W. G. Lewis, P. J. Holdsworth, P. Sagar & D. Johnston