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Editor: Philip Greenland, MD 750 N Lake Shore Dr Ninth Floor Chicago, IL 60611 Phone: (847) 869-7609 Fax: (312) 503-5388 E-mail: archinternmed@jama-archives.org

Deputy Editors: David C. Goff, Jr, MD, PhD, Winston-Salem, North Carolina Janardan D. Khandekar, MD, Evanston, Illinois Patrick G. O'Malley, MD, MPH, Washington, DC Hemant K. Roy, MD, Evanston, Illinois

Associate Editor: Robert A. Phillips, MD, PhD, Worcester, Massachusetts

Statistical Editors: Associate: Alan R. Dyer, PhD, Chicago, Illinois Assistant: Denise M. Scholtens, PhD, Chicago, Illinois

Assistant Editor: Kathleen M. McKibbin, MD, Winnetka, Illinois

Editorial Assistant: Arawa McClendon, Chicago, Illinois

CME: Robert Golub, MD, Chicago, Illinois Controversies: Ann B. Nattinger, MD, MPH, Milwaukee, Wisconsin

Charles L. Bennett, MD, PhD, Chicago, Illinois JudyAnn Bigby, MD, Boston, Massachusetts Martin J. Blaser, MD, New York, New York Robert D. Brook, MD, Ann Arbor, Michigan Mary Cushman, MD, MSc, Burlington, Vermont Rodney H. Falk, MD, Boston, Massachusetts Ann R. Falsey, MD, Rochester, New York Elyse Foster, MD, San Francisco, California Jeffrey L. Glassroth, MD, Boston, Massachusetts Robert J. Goldberg, PhD, Worcester, Massachusetts Kurt Kroenke, MD, Indianapolis, Indiana Henry T. Lynch, MD, Omaha, Nebraska Mary M. McDermott, MD, Chicago, Illinois Carlos F. Mendes de Leon, PhD, Chicago, Illinois Bruce M. Psaty, MD, PhD, MPH, Seattle, Washington Kathryn M. Rexrode, MD, MPH, Boston, Massachusetts Mohammed F. Saad, MD, Smithtown, New York Mary E. Tinetti, MD, New Haven, Connecticut Jack Zwanziger, PhD, MBA, Chicago, Illinois

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Copyright 2007 by the American Medical Association. All rights reserved. Reproduction without permission is prohibited.