1. University of Toledo College of Medicine Toledo OH USA
2. Department of Dermatology Division of Pediatric Dermatology University of Minnesota Minneapolis MN USA
3. Department of Dermatology Northwestern University Chicago IL USA
4. Division of Dermatopathology Department of Dermatology Northwestern University Chicago IL USA
5. Division of Pediatric Dermatology Ann & Robert H. Lurie Children’s Hospital of Chicago Chicago IL USA
6. Division of Cancer Epidemiology and Prevention Department of Preventative Medicine Northwestern University Chicago IL USA