The New England Journal of Medicine Downloaded from nejm.org on October 22, 2015. For personal use only. No other uses without permission. Copyright © 1991 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org on October 22, 2015. For personal use only. No other uses without permission. Copyright © 1991 Massachusetts Medical Society. All rights reserved.

Trends in serum cholesterol levels from 1980 to 1987.

The New England Journal of Medicine Downloaded from nejm.org on October 22, 2015. For personal use only. No other uses without permission. Copyright ©...
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