Affiliation: | T. J. Walker, MB, BS, FRCA, Senior Registrar, Department of Anaesthesia, Hammersmith Hospital, Du Cane Road, London W12 0HS.;M. K. Chakrabarti MBE, BSc, MPhil, Senior Chief Technician, Department of Anaesthesia, Hammersmith Hospital, Du Cane Road, London W12 0HS.;G. G. Lockwood MB, BS, FFARCS, BSc, Senior Lecturer, Department of Anaesthesia, Hammersmith Hospital, Du Cane Road, London W12 0HS. |