1. Department of Oral Medicine University of Pennsylvania School of Dental Medicine Philadelphia Pennsylvania USA
2. Department of Oral Medicine Guy's and St Thomas' NHS Foundation Trust London UK
3. Oral Medicine Unit, Department of Clinic and Preventive Dentistry Universidade Federal de Pernambuco Recife Brazil
4. Oral Immunobiology Unit, National Institute of Dental and Craniofacial Research National Institutes of Health Bethesda Maryland USA
5. William Rand Kenan, Jr. Library of Veterinary Medicine North Carolina State University Raleigh North Carolina USA
6. Department of Dermatology, Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA
7. Centre for Host Microbiome Interactions (CHMI), Faculty of Dentistry, Oral & Craniofacial Sciences King's College London London UK
8. Oral Medicine and Dentistry Pathology, Harvard School of Dental Medicine Boston Massachusetts USA
9. High Point University School of Dental Medicine and Oral Health High Point North Carolina USA