Affiliation: | 1. Department of Immunology, CHU Béni‐Messous, Algiers, Algeria;2. Department of Immunology, Central Hospital of Army, Algiers, Algeria;3. Department of Rheumatology, EPH Benaknoun, Algiers, Algeria;4. Department of Rheumatology, CHU Béni‐Messous, Algiers, Algeria |