1. Department of Oral and Maxillofacial Pathology and Microbiology; Sathyabama University Dental College; Sathyabama University; Chennai India
2. Ragas Dental College and Hospital; Chennai India
3. Excellent Research Laboratory; Phytomedicine and Pharmaceutical Biotechnology Excellence Center; Hat Yai Songkhla Thailand
4. Natural Products Research Center of Excellence; Faculty of Science; Prince of Songkla University; Hat Yai Songkhla Thailand
5. Graduate School; Prince of Songkla University; Hat Yai Songkhla Thailand
6. Department of Oral Medicine and Traditional Chinese Medicine; Peking University School of Stomatology; Haidian District Beijing China
7. Department of Oral and Maxillofacial Surgery and Oral Pathology; Faculty of Dentistry; Obafemi Awolowo University; Ile-Ife Nigeria