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Gallagher, Sean

Letters to the Editor

National Institute for Occupational Safety & Health

Pittsburgh, Pennsylvania

The manuscript submitted does not contain information about medical device(s)/drug(s).

No funds were received in support of this work. No benefits in any form have been or will be received from a commercial party related directly or indirectly to the subject of this article.

© 2002 Lippincott Williams & Wilkins, Inc.