1. Department of Internal Medicine I, Martin Luther University, Halle, Germany
2. Nikan Research Institute, Isfahan, Iran
3. Department of Oral Biology and Pathology, School of Dental Medicine, State University of New York at Stony Brook, New York, USA
4. Department of Medicine, New York University School of Medicine, New York, New York, USA
5. Department of Biotechnology, Biohouse, Inland Norway University of Applied Sciences, Hamar, Hedmark, Norway