Ayaid Khadem Zgair, Tran., “Plaque Forming Cell Technique for Counting IgG and IgM antibody-secreting cells in peripheral blood of patients with rheumatoid arthritis”, WJEBS, vol. 1, no. 2, pp. 37–42, Dec. 2013, Accessed: Nov. 13, 2025. [Online]. Available: https://journals.uniscipub.com/Wjebs/article/view/14