بسم الله الرحمن الرحيم
Hall, critical decisions in periodontology 2003
WALTER B. HALL, BA, DDS, MSD
Professor Emeritus
Department of Periodontics
University of the Pacific School of Dentistry
San Francisco, California
2003 BC Decker Inc.
All rights reserved. No part of this publication may be reproduced, stored in a
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photocopying, recording, or otherwise, without prior written permission from the
publisher.
02 03 04 05/GSA/9 8 7 6 5 4 3 2 1
ISBN 1-55009-184-0
Printed in Spain