1. Centre for Oral Immunobiology & Regenerative Medicine and Centre for Oral Clinical ResearchInstitute of DentistryBarts and the London School of Medicine and DentistryQueen Mary University of London (QMUL) London UK
2. Private Practice London and Bishop's Stortford UK
3. Institute of Epidemiology and Preventive MedicineCollege of Public HealthNational Taiwan University Taipei Taiwan