1. Secretary, ICMJE, Executive Deputy Editor, Annals of Internal Medicine.
2. Representative and Past President, World Association of Medical Editors.
3. Scientific Editor-in-Chief, Ugeskrift for Laeger (Danish Medical Journal).
4. Chief Editor, PLOS Medicine.
5. Editor-in-Chief, Annals of Internal Medicine.
6. Deputy Editor, The Lancet.
7. Editor-in-Chief, Journal of Korean Medical Science.
8. Editor-in-Chief, Ethiopian Journal of Health Sciences.
9. Editor, Bulletin of the World Health Organization, Coordinator, WHO Press.
10. Editor-in-Chief, The British Medical Journal (BMJ).
11. Editor-in-Chief, New Zealand Medical Journal.
12. Editor, Revista Médica de Chile (Medical Journal of Chile).
13. Editor-in-Chief, New England Journal of Medicine.
14. Editor-in-Chief, Journal of the American Medical Association (JAMA) and the JAMA Network.
15. Chief Scientific Editor, Deutsches Ärzteblatt (German Medical Journal) & Deutsches Ärzteblatt International.
16. Representative and Associate Director for Library Operations, National Library of Medicine.