Affiliation: | Jane M. Rouse, MB, BS, Registrar, R.L.A. Galley, MB, BS, Registrar and D.R. Bevan, MB, BChir, MRCP, FFARCS, Senior Lecturer, Department of Anaesthetics, St Mary's Hospital, Praed Street, London W2 1NY. Correspondence should be addressed to Dr D.R. Bevan. |