The New England Journal of Medicine Downloaded from nejm.org at UNIV OF PENN LIBRARY on October 12, 2015. For personal use only. No other uses without permission. From the NEJM Archive. Copyright © 2010 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org at UNIV OF PENN LIBRARY on October 12, 2015. For personal use only. No other uses without permission. From the NEJM Archive. Copyright © 2010 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org at UNIV OF PENN LIBRARY on October 12, 2015. For personal use only. No other uses without permission. From the NEJM Archive. Copyright © 2010 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org at UNIV OF PENN LIBRARY on October 12, 2015. For personal use only. No other uses without permission. From the NEJM Archive. Copyright © 2010 Massachusetts Medical Society. All rights reserved.

Serum high-density-lipoprotein cholesterol in women using oral contraceptives, estrogens and progestins.

The New England Journal of Medicine Downloaded from nejm.org at UNIV OF PENN LIBRARY on October 12, 2015. For personal use only. No other uses without...
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