Additional file 3, Figure S3.

[18F]fluoro-PEG-folate imaging of arthritic rats. [18F]fluoro-PEG-folate uptake in the right arthritic knee at (A) baseline (arrow) and (B) after blocking the FR with an excess dose of glucosamine-folate. In the latter case abolishment of the signal in the arthritic knee is evident.

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Gent et al. Arthritis Research & Therapy 2013 15:R37   doi:10.1186/ar4191