1. Department of Oral Medicine and Oral Surgery; Jordan University of Science and Technology (JUST); Irbid Jordan
2. Department of Biotechnology and Genetics; Jordan University of Science and Technology (JUST); Irbid Jordan
3. Department of Oral Medicine and Oral Diagnosis; College of Dentistry; Al Mustansiriya University; Baghdad Iraq
4. Unit of Oral and Maxillofacial Medicine and Surgery; School of Clinical Dentistry; The University of Sheffield; Sheffield UK