S. Buyukberber, N. Buyukberber, M. Turgay, and G. Tokgoz, “Serum immunoglobulin levels in systemic lupus erythematosus: is IgA level an activity criterion ”, Ann Med Res , vol. 2, no. 4, pp. 0336–0342, May 2021, Accessed: Sep. 16, 2026. [Online]. Available: http://www.annalsmedres.org/index.php/aomr/article/view/2466