THE NATIONAL ACADEMIES PRESS
500 Fifth Street, N.W. Washington, DC 20001

NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for appropriate balance.

The study is supported by Grant No. 052339 between the National Academy of Sciences and The Robert Wood Johnson Foundation. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the views of the organizations or agencies that provided support for the project.

Additional copies of this report are available from the
National Academies Press,
500 Fifth Street, N.W., Box 285, Washington, DC 20055. Call (800) 624–6242 or (202) 334–3313 (in the Washington metropolitan area), Internet, http://www.nap.edu.

For more information about the Institute of Medicine, visit the IOM home page at: www.iom.edu.

Copyright 2006 by the National Academy of Sciences. All rights reserved.

Illustration by Becky Heavner.

Printed in the United States of America.

The serpent has been a symbol of long life, healing, and knowledge among almost all cultures and religions since the beginning of recorded history. The serpent, adopted as a logotype by the Institute of Medicine, is a relief carving from ancient Greece, now held by the Staatliche Museen in Berlin.



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement