Health A-Z

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National Heart, Lung, and Blood Institute (NHLBI)
6701 Rockledge Drive
P.O. Box 30105
Bethesda, MD 20824-0105
Phone: (301) 592-8573
http://www.nhlbi.nih.gov

American Lung Association
1740 Broadway
New York, NY 10019
Phone: (212) 315-8700
Toll-Free: (800) 586-4872
http://www.lung.org

Date Last Reviewed: 12/3/2012

Date Last Modified: 12/3/2012

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From Health A-Z, Harvard Health Publications. Copyright 2007 by the President and Fellows of Harvard College. All rights reserved. Written permission is required to reproduce, in any manner, in whole or in part, the material contained herein. To make a reprint request, contact Harvard Health Publications. Used with permission of StayWell.

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