Supplementary Figure 5: Cell density quantification on ten histological synovial samples.

a, Correlation between cell density (cell counts per 200× field) and flow cytometric cell yields on B cells. b, Correlation between cell density (cell counts per 200× field) and flow cytometric cell yields on T cells. In general, we observed that the samples where we get the most single cell measurements are exactly the samples with the best yield and also the ones with the most inflammation.