1. Dental and Periodontal Research Center, Faculty of DentistryTabriz University of Medical SciencesTabrizIran
2. Drug Applied Research Center, Faculty of MedicineTabriz University of Medical SciencesTabrizIran
3. Students' Research Committee, Faculty of DentistryTabriz University of Medical SciencesTabrizIran
4. Department of Oral Medicine, Faculty of DentistryTabriz University of Medical SciencesTabrizIran
5. Department of MicrobiologyTabriz University of Medical SciencesTabrizIran