1. Dental Public Health; Centre for Adult Oral Health; Institute of Dentistry; Barts and The London (QMUL); London United Kingdom
2. Section of Primary Care; The Ohio State University College of Dentistry; United States
3. Department of Community Dentistry; Faculty of Dentistry; University of the Western Cape; Cape Town South Africa
4. Faculty of Dentistry; University of Malaya; Malaysia
5. Centre for Adult Oral Health; Institute of Dentistry; Barts and The London (QMUL); United Kingdom
6. Department of Oral Health and Behavioural Sciences; University of Medicine and Pharmacy; Carol Davila Bucharest; Romania
7. School of Dentistry; University of Western Australia; Australia
8. Centre for Adult Oral Health; Institute of Dentistry; Barts and The London (QMUL); London Unitd Kingdom