Affiliation: | 1. GlaxoSmithKline Worldwide Epidemiology, Research Triangle Park, North Carolina;2. Department of Epidemiology, University of North Carolina at Chapel Hill, Research Triangle Park, North Carolina;6. Dermatology Therapeutic Area, Collegeville, Pennsylvania;3. GlaxoSmithKline Worldwide Epidemiology, Collegeville, Pennsylvania;4. Quintiles, Inc, Research Triangle Park, North Carolina;5. GlaxoSmithKline Worldwide Epidemiology, Uxbridge, Middlesex, United Kingdom;g. Epidemiology Associates, LLC, Chapel Hill, North Carolina |