About the Authors

Harold C. Sox

Affiliation Dartmouth Institute, Dartmouth Medical School, Hanover, New Hampshire, United States of America

Mark Helfand

helfand@ohsu.edu

Affiliation Portland VA Medical Center and Department of Medicine, Oregon Health & Science University, Portland, Oregon, United States of America

Jeremy Grimshaw

Affiliation Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada

Kay Dickersin

Affiliation Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

the PLoS Medicine Editors
David Tovey

Affiliation The Cochrane Library, London, United Kingdom

J. André Knottnerus

Affiliation Department of General Practice, University of Maastricht, Maastricht, The Netherlands

Peter Tugwell

Affiliation Departments of Medicine, and Epidemiology and Community Medicine, University of Ottawa, Ottawa, Ontario, Canada

Competing Interests

The PLoS Medicine Editors' competing interests are at http://www.plosmedicine.org/static/editorsInterests.action. PLoS is funded partly through manuscript publication charges, but the PLoS Medicine Editors are paid a fixed salary (their salary is not linked to the number of papers published in the journal). The other authors have declared no competing interests.

Author Contributions

ICMJE criteria for authorship read and met: HCS MH JG KD VB JC SJ LP EV DT AK PT. Agree with the manuscript's results and conclusions: HCS MH JG KD VB JC SJ LP EV DT AK PT. Wrote the first draft of the paper: HCS. Contributed to the writing of the paper: HCS MH JG KD VB JC SJ LP EV DT AK PT.