1. Department of Oral Pathology, Luxmi Bai Institute of Dental Sciences, Patiala, Punjab, India
2. Department of OMFS and Diagnostic Sciences, College of Dentistry, King Faisal University, Al-Ahasa 31982, Saudi Arabia
3. Department of Oral Pathology, Desh Bhagat Dental College, Mandi Gobindgarh, Punjab, India
4. Department of Oral and Maxillofacial Surgery, Guru Nanak Dev Dental College, Sunam, Punjab, India