1. Negida Academy LLC, Arlintgton, Massachusetts, USA
2. Faculty of Medicine, Sana’a University, Sana’a, Yemen
3. Faculty of Medicine , University of Science and Technology, Irbid, Jordan
4. Faculty of Medicine, South Valley University, Qena, Egypt
5. Faculty of Medicine, Cairo University, Cairo, Egypt
6. Faculty of Medicine, Hashemite University, Jordan, Jordan