1. Unit of Periodontics, Oral Health Sciences Centre Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
2. Department of Internal Medicine Post Graduate Institute of Medical Education & Research (PGIMER) Chandigarh India
3. Department of Oral and Maxillofacial Diseases University of Helsinki and Helsinki University Hospital Helsinki Finland
4. Department of Dental Medicine, Division of Periodontology Karolinska Institutet Huddinge Sweden
5. Clinical Research Department, Diabetes Center and Practice Pfützner Science and Health Institute Mainz Germany
6. Department of Virology Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
7. Department of Anaesthesia and Intensive Care Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India