The material for these information sheets has been compiled from
many sources and credit is given to the authors and organisations where indicated.
Permission to use the information has been obtained from these sources for use as
indicated below. Use of material for profit is forbidden. We are grateful to all the
authors. All rights reserved. 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 the prior permission of the North East Valley
Division of General Practice.