The New England Journal of Medicine Downloaded from nejm.org at DUKE MEDICAL CENTER LIBRARY on November 19, 2015. For personal use only. No other uses without permission. From the NEJM Archive. Copyright © 2009 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org at DUKE MEDICAL CENTER LIBRARY on November 19, 2015. For personal use only. No other uses without permission. From the NEJM Archive. Copyright © 2009 Massachusetts Medical Society. All rights reserved.

Letter: Garfield system for ambulatory care.

The New England Journal of Medicine Downloaded from nejm.org at DUKE MEDICAL CENTER LIBRARY on November 19, 2015. For personal use only. No other uses...
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