Accepted for Publication: September 12, 2011.
Author Contributions: Ms Wan and Dr Vittorio contributed equally to this article as co –first authors. Ms Wan and Dr Gelfand had full access to all of 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: Vittorio, Abuabara, Kurd, and Gelfand. Acquisition of data: Wan, Abuabara, Musiek, Steinemann, and Gelfand. Analysis and interpretation of data: Wan, Vittorio, and Gelfand. Drafting of the manuscript: Wan and Vittorio. Critical revision of the manuscript for important intellectual content: Wan, Vittorio, Abuabara, Kurd, Musiek, Steinemann, and Gelfand. Statistical analysis: Wan and Gelfand. Obtained funding: Vittorio. Administrative, technical, and material support: Wan, Vittorio, Abuabara, Kurd, Musiek, and Gelfand. Study supervision: Vittorio, Musiek, and Gelfand.
Financial Disclosure: Dr Vittorio has filed a patent application for the use of DNA polymerase inhibitors in inducing alopecia. Dr Gelfand has served as consultant and investigator with Abbott, Amgen, Centocor, Genentech, Novartis, and Pfizer; consultant with Celgene, Covance, Galderma, Shire Pharmaceuticals, and Wyeth; and investigator with Shionogi.
Funding/Support: This study was supported by the Sandra J. Lazarus Endowment in the Department of Dermatology at the University of Pennsylvania (Dr Vittorio) and grants from the Edwin and Fannie Gray Hall Center for Human Appearance at the University of Pennsylvania (Dr Vittorio), the Doris Duke Clinical Scholars Program (Dr Abuabara), and National Institutes of Health Training Grant T32-AR07465 (Ms Wan and Dr Musiek).
Role of the Sponsors: The sponsors had no role in the design and conduct of the study; in the collection, analysis, and interpretation of data; or in the preparation, review, or approval of the manuscript.
Additional Contributions: We thank Jennifer Goldfarb, RN, Albana Oktrova, and Deborah Leahy, LPN, for coordinating this study; Daniel Shin, BA, for his assistance with statistical analysis; and George Cotsarelis, MD, for his review of an earlier version of the manuscript.