Fig. 1From: Exosome microRNA signatures in patients with complex regional pain syndrome undergoing plasma exchangeSchematic of plasma exchange (PE) protocol and sample collection for downstream analysis. Blood was collected from CRPS patients before PE and following a series of five to seven more PE distributed over 2 weeks. Plasma was used to assay the cytokines, while serum was used for exosome isolation and downstream miRNA profilingBack to article page