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(A) Representative GBM scored 0. (B) Representative GBM scored +. (C) Representative GBM scored ++. (D) Representative GBM scored +++. (E) Representative oligodendroglioma scored 0. (F) Representative oligodendroglioma scored +. (G) Representative oligodendroglioma scored ++. (H) Representative oligodendroglioma scored +++. Original magnification: 40x.
