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Keywords: Perfluorooctanesulfonic acid OR 1763-23-1 OR PFOS OR nPFOS OR 9H2MAI21CL OR perfluorooctane sulfonate OR perfluorooctylsulfonic acid OR Perfluorooctane sulfonic acid OR 1-perfluorooctanesulfonic acid OR octanesulfonic acid, perfluoro- OR perfluorooctane-1-sulfonic acid OR Heptadecafluorooctanesulfonic Acid

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