Acceptance of advertisements for this publication does not imply a recommendation for the article or service advertised.

Information has been included in good faith by the publishers and is believed to be correct at the time of going to print.

No responsibility can be accepted for errors and omissions.

No part of these publications may be reproduced, translated, stored in a retrieval system or transmitted in any form by any means electronic, electrostatic, magnetic tape, mechanical photocopying, recording or otherwise, without permission in writing from the publishers.