1. Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
2. Dr. Nasser Al-Rashid Research Chair in Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
3. Laboratory of Histochemistry and Cytochemistry, Department of Pathology, University of Leuven, KU Leuven, Leuven, Belgium
4. Rega Institute for Medical Research, Department of Microbiology and Immunology, University of Leuven, KU Leuven, Leuven, Belgium