1. Department of Oral Pathology Faculty of Dentistry Alexandria University Egypt
2. Center of Excellence for Research in Regenerative Medicine and Applications (CERRMA) Faculty of Medicine Alexandria University Egypt
3. Medical Biophysics Department Medical Research Institute Alexandria University Egypt
4. Laser Dynamics Laboratory School of Chemistry and Biochemistry Georgia Institute of Technology Atlanta GA USA
5. Clinical Sciences Department College of Medicine University of Sharjah UAE
6. Pathology Department Faculty of Medicine Alexandria University Egypt
7. Laboratory of Cancer Biology and Genetics Center for Cancer Research National Cancer Institute Bethesda MD USA