1. Military Technical College,Biomedical Eng. Dept,Cairo,Egypt
2. Military Technical College,Computer Eng. and AI Dept,Cairo,Egypt
3. Maadi Armed Forces Medical Complex,Radiology Dept,Cairo,Egypt
4. El Menoufia University,National Liver Institute,El Menoufia,Egypt
5. University of Cincinnati,Biomedical Eng. Dept,Ohio,United States