1. Laboratory of Cellular and Molecular Biology (LBCM), Cytokines and NO Synthases Group, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene (USTHB), Algiers, Algeria
2. Dentistry Department, Isaad Hassani Beni Messous hospital, Algiers, Algeria
3. Internal Medicine Department, Mostaganem hospital, Algiers, Algeria
4. Internal Medicine Department, Ali Meguraoui Ain Taya Hospital, Algiers, Algeria
5. Internal Medicine Department, Mustapha hospital, Algiers, Algeria
6. Ophthalmology Department, Nafissa Hammoud Ex-Parnet Hospital, Algiers, Algeria