Edited by R
L
Souhami
MD FRCP FMedSci
Emeritus Professor of Medicine, University College London, UK J Moxham MD FRCP Professor of Respiratory Medicine and Vice-Dean, Guy's King's and St Thomas' School of Medicine, King's College Hospital, London, UK
CHURCHILL LIVINGSTONE
EDINBURGH LONDON NEW YORK OXFORD PHILADELPHIA ST LOUIS SYDNEY TORONTO 2002
CHURCHILL LIVINGSTONE An imprint of Elsevier Limited © Pearson Professional Limited 1996 Assigned to Harcourt Brace and Company 1998 © 2002, Elsevier Science Limited. All rights reserved. © 2004, Elsevier Limited. All rights reserved.
Commissioning Editor: Laurence Hunter Project Development Manager: Barbara Simmons Project Manager: Nancy Arnott Designer: Erik Bigland
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Note Medical knowledge is constantly changing. As new information becomes available, changes in treatment, procedures, equipment and the use of drugs become necessary. The authors and the publishers have taken care to ensure that the information given in this text is accurate and up to date. However, readers are strongly advised to confirm that the information, especially with regard to drug