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Two-dimensional gel electrophoresis using CSF from: (a) and (c): 6 month-old Wistar-Kioto rats; (b) and (d) 6 month-old SHR rats. (a) and (b) gels were obtained with silver staining and (c) and (d) were stained with Coomassie blue. The approximate isoelectric point (pI) and molecular weights (MW) are shown. The numbers in the gels correspond to the numbering in Table 1.
