Viriyataveekul, R., Nilganuwong, S., Chaihirunkorn, S., Sittapairochana, C. and Santisuthum, W. 2020. Comparison of Rheumatoid Factor Testing Methods: Nephelometric Assay Versus Latex Agglutination Assay. Siriraj Medical Journal. 52, 2 (Aug. 2020), 99–104.