Sponsorship, authorship and accountability

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .

The authors are members of the International Committee of Medical Journal Editors. Dr. Davidoff is Editor Emeritus, ; Dr. DeAngelis is Editor, ; Dr. Drazen is Editor-in-Chief, ; Dr. Nicholls is Editor, ; Dr. Hoey is Editor, ; Dr. Højgaard is Editor-in-Chief, (Journal of the Danish Medical Association); Dr. Horton is Editor, ; Dr. Kotzin is Executive Editor, MEDLINE/Index Medicus; Dr. Nylenna is Editor-in-Chief, (Journal of the Norwegian Medical Association); Dr. Overbeke is Executive Editor, (Dutch Journal of Medicine); Dr. Sox is Editor, ; Dr. Van Der Weyden is Editor, ; and Dr. Wilkes is Editor, .