Figure 6From: Standardization and performance evaluation of mononuclear cell cytokine secretion assays in a multicenter studyReproducibility of cytokine responses in central vs. peripheral processing protocols. Cytokine responses from PHA, TT and LPS stimulated cells cultured at each local site as fresh cells or cultured centrally following cryopreservation and shipment from local sites. Units are pg/ml. Three separate experiments are shown as runs 1–3.Back to article page