1. Department of Dental Health, College of Applied Medical Sciences King Saud University Riyadh Saudi Arabia
2. Institute of Diagnostic and Interventional Radiology, Klinikum Oldenburg University Hospital Carl von Ossietzky University Oldenburg Oldenburg Germany
3. Department of Periodontology Pushpagiri College of Dental Sciences Thiruvalla India
4. Global Institute of Public health Thiruvananthapuram India
5. Department of Dentistry Oral Health Institute, Hamad Medical Cooperation Doha Qatar