1. Shriners Hospitals Pediatric Research Center; Temple University School of Medicine; Philadelphia Pennsylvania USA
2. Department of Dermatology; Institute of Regenerative Medicine; University of Pennsylvania School of Medicine; Philadelphia Pennsylvania USA
3. Temple Itch Center; Department of Dermatology; Department of Anatomy and Cell Biology; Temple University School of Medicine; Philadelphia Pennsylvania USA
4. Institute for Pediatric Regenerative Medicine; Shriners Hospitals for Children Northern California; Sacramento California USA
5. Department of Neurology; School of Medicine; University of California; Sacramento California USA
6. Department of Neurobiology, Physiology & Behavior; University of California; Davis California USA