S, Vinithra, et al. “Diagnostic Value of Rheumatoid Factor and Anti-CCP in Seropositive and Seronegative Rheumatoid Arthritis Patients at a Tertiary Hospital in Tamil Nadu”. Journal of Neonatal Surgery, vol. 14, no. 26S, May 2025, pp. 272-5, https://jneonatalsurg.com/index.php/jns/article/view/6264.