Słomkowski, G. et al. 2026. CERVICAL SPINE INSTABILITY IN RHEUMATOID ARTHRITIS IN THE ERA OF MODERN ANTIRHEUMATIC THERAPY: PREDICTORS OF PROGRESSION AND TIMING OF NEUROSURGICAL REFERRAL. International Journal of Innovative Technologies in Social Science. 3, 3(51) (Sep. 2026). DOI:https://doi.org/10.31435/ijitss.3(51).2026.6545.