Accepted for Publication: October 16, 2011.
Author Contributions: Drs Francès and Costedoat-Chalumeau had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Francès, Soutou, Bessis, Lipsker, and Costedoat-Chalumeau. Acquisition of data: Francès, Cosnes, Zahr, Ingen-Housz-Oro, Bessis, Chevrant-Breton, Cordel, and Lipsker. Analysis and interpretation of data: Francès, Duhaut, Lipsker, and Costedoat-Chalumeau. Drafting of the manuscript: Francès, Bessis, Lipsker, and Costedoat-Chalumeau. Critical revision of the manuscript for important intellectual content: Francès, Duhaut, Zahr, Soutou, Ingen-Housz-Oro, Chevrant-Breton, Cordel, Lipsker, and Costedoat-Chalumeau. Statistical analysis: Duhaut. Obtained funding: Francès and Bessis. Administrative, technical, and material support: Zahr. Study supervision: Francès, Chevrant-Breton, and Costedoat-Chalumeau.
Financial Disclosure: None reported.
Funding/Support: This study was supported by a grant from the French Society of Dermatology.
Role of the Sponsors: The sponsors had no role in the design and conduct of the study; in the collection, analysis, or interpretation of data; or in the preparation, review, or approval of the manuscript.
Additional Contributions: Florence Cordoliani, MD, Michel Rybojad, MD, Béatrice Crickx, MD, Catherine Picard-Dahan, MD, Philippe Humbert, MD, PhD, Nicolas Kluger, MD, Marie Francoise Avril, MD, PhD, Marie Sylvie Doutre, MD, PhD, Catherine Lok, MD, PhD, and Francois Truchetet, MD, of the Etude des Maladies Systémiques en Dermatologie group participated in this study.