1. Department of Prosthodontics and Crown & Bridge, Career Post Graduate Institute of Dental Sciences and Hospital, Lucknow UP, India
2. Department of Oral and Maxillofacial Surgery, Saraswati Dental College, Lucknow, UP, India
3. Department of Anatomy, King George Medical University, Lucknow, UP, India
4. Department of Family and Community Medicine, College of Medicine, King Khalid University, Abha, Saudi Arabia
5. Department of Public Health, College of Applied Medical Sciences, Khamis Mushait, King Khalid University, Abha, Saudi Arabia
6. Department of Community Medicine, Integral University, Lucknow, India
7. Department of Medical Education, College of Medicine, King Khalid University, Abha, Saudi Arabia
8. Department of Community Medicine F.H. Medical College, Etmadpur, Agra, UP, India
9. Department of Basic Medical Science, College of Applied Medical Sciences, Khamis Mushayt Campus, King Khalid University (KKU), Abha, Saudi Arabia.