1. American University of Beirut Medical Center, Beirut, Lebanon
2. Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
3. Cairo University, Cairo, Egypt
4. University of Pretoria, Pretoria, South Africa
5. Ain Shams University School of Medicine, Cairo, Egypt
6. Zuid Afrikaans Hospitaal, Pretoria, South Africa
7. University of Milan-BICOCCA, Italy
8. Jordan University Hospital, Amman, Jordan