About This Journal FREE

To promote the art and science of medicine and the betterment of human health by publishing manuscripts of interest and relevance to internists practicing as generalists or as medical subspecialists.

EDITORIAL STAFF

Editor: Philip Greenland, MD 680 N Lake Shore Dr Suite 1102 Chicago, IL 60611 Phone: (312) 503-5387 Fax: (312) 503-5388 E-mail: archinternmed@jama-archives.org

Deputy Editors:Linda L. Emanuel, MD, PhD, Chicago, Ill Janardan D. Khandekar, MD, Evanston, Ill Hermant K. Roy, MD, Evanston, Ill

Associate Editor: Robert A. Phillips, MD, PhD, New York, NY

Editorial Assistant: Sheila K. Kessler, Chicago, Ill

CME: Robert Golub, MD, Chicago, Ill

Controversies: Ann Nattinger, MD, MPH, Milwaukee, Wis

Reviews and Book Reviews: Patrick G. O'Malley, MD, MPH, Washington, DC

Statistical Editor: Alan R. Dyer, PhD, Chicago, Ill

Charles L. Bennett, MD, PhD, Chicago, Ill Martin J. Blaser, MD, New York, NY Judy Ann Bigby, MD, Boston, Mass Robert D. Brook, MD, Ann Arbor, Mich Mary Cushman, MD, MSc, Colchester, Vt Rodney H. Falk, MD, Boston, Mass Elyse Foster, MD, San Francisco, Calif Jeffrey L. Glassroth, MD, Madison, Wis Robert J. Goldberg, PhD, Worcester, Mass Mary M. McDermott, MD, Chicago, Ill Kathryn M. Rexrode, MD, MPH, Boston, Mass Marc Roberts, PhD, Boston, Mass Mohammed F. Saad, MD, Los Angeles, Calif Mary E. Tinetti, MD, New Haven, Conn

PUBLICATION STAFFOffices: 515 N State St, Chicago, IL 60610 Catherine D. DeAngelis, MD, MPH Editor in Chief, Scientific Publications & Multimedia Applications

Cheryl Iverson Managing Editor

Editorial Processing Department

Department Director: Paula Glitman Manuscript Editing Manager: Lauren B. Fischer Senior Manuscript Editors: Dee E. Egger, Vickey Golden, John McFadden, Donald S. Smith Manuscript Editor: Elisabeth Caron Freelance Manuscript Editing Manager: Diane L. Cannon Freelance Manuscript Editing Coordinator: Connie Manno Freelance Copy Editors and Copyreaders: Catherine A. Alden, Karen L. Boyd, Lisa M. Cluver, Mary Coerver-Connolly, Allison Esposito, Laura King, Mary A. Kingzette, Nicole C. Netter, Caroline Woods Editorial Systems Managers: Paul Frank, Monica Mungle Systems Programmer/Internet Specialist: J. D. Neff Editorial Assistant: Wanda Hill

Scientific Publications & Multimedia Applications

Executive Assistant to the Editor: Marla A. Hall

Scientific Online Resources

Director: Margaret Winker, MD Electronic Media Department Director: Michelle Kurzynski Associate Web Editor: Erin M. Giannini Web Office Manager: Nadine Siewnarine

PUBLISHING & BUSINESS STAFF

VP & Group Publisher: Nawin Gupta, PhD Assistant Publisher: Geoffrey Flick VP Office Staff: Colleen Casey, Paul Gasiecki, Terri Hanley, Christine Hearne

Online Business and CME

Publisher: Bonnie Chi-Lum, MD, MPH

Business & Product Development

Publishing Director: Frank Iorio Director, Circulation Sales & Marketing: William Fox Director, Licensing & Permissions: Norman Frankel, PhD Managers: Kathy Braun, Vida Damijonaitis Staff: Rhonda Bailey, Millette Jackson-Bates, Sandra Garzon, Anna Goins, Jeremy Nielsen, Saskia Volkers Director, Marketing Support Services: Mark Thornbury Staff: Nancy Bell, Susan Lovenberg, Mirna Monal, Dennis Sammartino, Debra Ann Sardo Director, Reprints: Mark Kuhns Staff: Wanda Bartolotta, Joseph Rekash

Advertising Sales

Director: Jeffery J. Bonistalli

Sales Representatives: Peter G. Messina, Patricia Quilty

Classified Advertising

Manager: Thalia Moss Staff: Kimberly Bitowt, Shana Brown, Trina Rizzo

Publishing Operations Division

Division Director: Vanessa Hayden Directors: Karen Adams-Taylor, Sue Sherrill, Carmela Ware Managers: David Antos, Karen Branham, Suzanne J. Bukovsky, Debbie Camp, Diane Darnell, Karl Elvin, Betty Frigerio, Linda Gardner, Charl Jensen, Mary Ellen Johnston, Mark Matura, Michael McGraw, Phil O'Leary, Susan Price, Alfred Tomaselli Advertising and Production Services: Susan Chiara, Linda Christian, Mary Anne Donley, Euwanaha Joiner-Smith, Brian McCartney, Sean O'Donnell, Noemi Olmo, Ryan Patella, Carole Piszker, Cindy Rendlen, Denise Steinhauser, Ellen Yoshihara Circulation Processing: Bernadette Bauer, Julie Burton, Rosa Eng, Felicia Kyles, Lawrence Majkszak, Kathryn Osten Composition and New Media: Rebecca Aiken, Gail Barrett, Regina Brownlee, Brenda Chandler-Grayer, Amy Evers, Domenic Fosco, Mary Ann Kuranda, Sandra Lopez, Bruce McGregor, Ted Piwowar, La'son Diggs Sledge, Angela Smits, George Thomson Graphics: Joe Amft, Fred Furtner, Carolyn Hall, Maria Kowalkowski, Chris Meyer, JoAnne Weiskopf Proofreading: Carol Joy Farrell, Daniel James, Judith A. Literskis, Teresa H. Omiotek, Barbara Wojtowicz, Agnes A. Zarkadas

AMA EXECUTIVES

Michael D. Maves, MD, MBA, Executive Vice President, Chief Executive Officer Robert A. Musacchio, PhD, Senior Vice President, Publishing & Business Services

All articles published, including editorials, letters, and book reviews, represent the opinions of the authors and do not reflect the policy of the American Medical Association, the Editorial Board, or the institution with which the author is affiliated, unless this is clearly specified.

Copyright 2004 by the American Medical Association. All rights reserved. Reproduction without permission is prohibited.