- University of Pennsylvania
External person
- University of California Irvine
External person
- Guy's and St Thomas' NHS Foundation Trust
- Guy's and St. Thomas' Foundation Trust
External person
- University College London
External person
- University of Naples Federico II
- Federico II University Hospital
External person
- Center for Blistering Diseases
External person
- University of Pennsylvania
External person
- University College London
External person
- Harvard University
- Tufts University
- University of Rochester
- Eastman Institute for Oral Health
External person
- University College London
External person
- University of Pennsylvania
External person
- Virginia Commonwealth University
External person
- University of Pennsylvania
- University of Maryland, Baltimore
- Perelman School of Medicine
External person
