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