Oman
Ain Shams University Egypt
Albahar Ophthalmology Center and Elite Medical Center Kuwait
Cairo University Egypt.
Kuwait Specialized Eye Center Kuwait
Fayoum University Egypt
BinRushd Specialised Medical Center KSA
King Khaled Eye Specialist Hospital KSA
King Saud University KSA
Cairo University Egypt
King Faisal Specialist Hospital Riyadh
University of Alexandria Egypt
Elite Medical Center Kuwait