Affiliation: | Y. Myint, MB, BS, FRCA, Lecturer, Department of Anaesthesia, University of Sheffield Medical School, Beech Hill Road, Sheffield S10 2RX;P.W. Bailey, MB, BChir, FRCA, Consultant;B.R. Milne, MB, ChB, FRCA, Consultant, Department of Anaesthesia, Doncaster Royal Infirmary, Armthorpe Road, Doncaster DN2 5LT. |