Marwan ADWAN. “Clinical and Serologic Characteristics of Systemic Lupus Erythematosus in the Arab World: A Pooled Analysis of 3,273 Patients”. Archives of Rheumatology, vol. 33, no. 4, Dec. 2018, pp. 455-63, doi:10.5606/ArchRheumatol.2018.6832.