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. 2011 Aug 18;6(8):e23489. doi: 10.1371/journal.pone.0023489

Figure 2. Time in Days Following the Onset of Acute Optic Neuritis, When Serum GFAP Measurements Were Acquired, Versus the Serum GFAP Level in pg/mL.

Figure 2

Although many patients' serum was tested within 50 days of onset, their serum samples were collected up to 210 days following the onset of acute optic neuritis.