http://www.w3.org/ns/prov#value | - Suitable ELISA kits for determining the presence or level of a cytokine such as IL-8, IL-1??, MIP-3??, GRO??, CXCL4/PF-4, or CXCL7/NAP-2 in a serum, plasma, saliva, or urine sample are available from, e.g., R&D Systems, Inc. (Minneapolis, Minn.), Neogen Corp. (Lexington, Ky.), Alpco Diagnostics (Salem, N.H.), Assay Designs, Inc. (Ann Arbor, Mich.), BD Biosciences Pharmingen (San Diego, Calif.), In
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