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Images of patient samples as examples of the semiquantitative immunohistochemical scoring system for AQP4 (A: 1–5%, B: 5–50%, C: >50%), Nestin (E: 5–50%, F: 5–50%, G: >50%), NogoA (I: 1–5%, J: 5–50%, K: >50%) and Olig2 (M: 5–10%, N: 20–30%, O: >60%). Non-neoplastic cerebellar tissue (D, H, L and P) was used as a negative control for each staining. Magnification: 200x.
