Mosby An imprint of Elsevier Limited © 2003, Elsevier Limited. All rights reserved.
The right of Whitney Lowe to be identified as author of this work has been asserted by him in accordance with the Copyright, Designs and Patents Act 1988 No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without either the prior permission of the publishers or a licence permitting restricted copying in the United Kingdom issued by the Copyright Licensing Agency, 90 Tottenham Court Road, London WIT 4LP. Permissions may be sought directly from Elsevier's Health Sciences Rights Department in Philadelphia, USA: phone: (+1) 215 239 3804, fax: (+1) 215 239 3805, e-mail:
[email protected] You may also complete your request on-line via the Elsevier homepage (http://www.elsevier.com). by selecting 'Support and contact' and then 'Copyright and Permission'. First published 2003 Reprinted 2003, 2004, 2005, 2006 (twice), 2007 (twice) ISBN 13: 978 0 7234 3226 5 ISBN 10: 0 7234 3226 0 British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library Library of Congress Cataloguing in Publication Data A catalogue record for this book is available from the Library of Congress Note Medical knowledge is constantly changing. Standard safety precautions must be followed, but as new research and clinical experience broaden our knowledge, changes in treatment and drug therapy may become necessary r appropriate. Readers are advised to check the most current product information provided by the manufacturer of each drug to be administered to verify the recommended dose, the method and duration of administration, and contraindications. It is the responsibility of the practitioner, relying on experience and knowledge of the patient, to determine dosages and the best treatment for each individual patient. Neither the Publisher nor the editors assume any liability for any injury and/ or damage to persons or property arising from this publication. The Publisher _
your source for books, journals and multimedia in the health sciences
www.elsevierhealth.com
Working together to grow libraries in developing countries www.elsevier.com
I www.bookaid.org I www.sabre.org
The publishers policy istouse papermanufactured fromsustainable forests
Printed in China
I
To Elise Your support