1. Medical Biochemistry & Molecular Biology Research Institute of Ophthalmology, Giza, Egypt
2. Genetic Engineering and Biotechnology Research Institute (GEBRI), Sadat University, Sadat, Egypt
3. Ophthalmic Genetics, Research institute of Ophthalmology, Giza, Egypt
4. Ophthalmology Medical Retina, Research institute of Ophthalmology, Giza, Egypt