Affiliation: | P. G. Nay, MB, BS, FRCA, Senior Registrar, Department of Anaesthesia, St Mary's Hospital, Praed Street, London W2 1NY.;S. M. Elliott MB, BS, FRCA, Registrar, Department of Anaesthesia, St Mary's Hospital, Praed Street, London W2 1NY.;A. W. Harrop-Griffiths MA, MB, BS, FRCA, Consultant, Department of Anaesthesia, St Mary's Hospital, Praed Street, London W2 1NY. |