1. Department of Dermatology; University of Pennsylvania; Philadelphia Pennsylvania
2. Department of Biostatistics and Epidemiology; University of Pennsylvania; Philadelphia Pennsylvania
3. Department of Emergency Medicine; University of Pennsylvania; Philadelphia Pennsylvania
4. Department of Medicine; Perelman School of Medicine; University of Pennsylvania; Philadelphia Pennsylvania
5. Department of Medicine; Jesse Brown VA Medical Center and University of Hospital and Health Sciences System; Chicago Illinois
6. Center for Management of Complex Chronic Care; Edward Hines Jr., VA Hospital; Hines Illinois
7. Case Western Reserve University and MetroHealth Medical Center; Cincinnati Ohio