1. Faculty of Medicine Al‐Azhar University Cairo Egypt
2. Tanta Research Team Tanta Egypt
3. Harvard Medical School Boston Massachusetts USA
4. Faculty of Medicine Tanta University Tanta Egypt
5. Faculty of Medicine, Ash Sharqia Governorate Zagazig University Zagazig Egypt
6. Faculty of Medicine Banha University Banha Egypt
7. Emergency Medicine Department, Pilgrim Hospital United Lincolnshire NHS Trust Boston UK
8. McLaren Health Care Flint Michigan USA
9. Michigan State University East Lansing Michigan USA
10. Grupo de Investigación Biomedicina, Faculty of Medicine Fundacion Universitaria Autonoma de las Americas Pereira Risaralda Colombia
11. Institucion Universitaria Vision de las Americas Pereira, Risaralda Colombia
12. Master of Clinical Epidemiology and Biostatistics Universidad Cientifica del Sur Lima Peru
13. Tribhuvan University Teaching Hospital Institute of Medicine Kathmandu Nepal