CRP and rheumatoid arthritis: Our study demonstrated, in two different MS runs, that a higher number of proteins on RA-pEVs positively correlated with PGA-VAS [#42; 23] than to any of the other clinical disease parameters (TJC [#7; 8], SJC [#11; 6], CRP[#8; 3], and ESR[#4; 6]).