They suggested that extension of the tonsils up to 3 mm below the foramen magnum was normal, may be considered of borderline significance between 3 and 5 mm, and was pathologic when it exceeds 5 mm [ 7 ].
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They suggested that extension of the tonsils up to 3 mm below the foramen magnum was normal, may be considered of borderline significance between 3 and 5 mm, and was pathologic when it exceeds 5 mm [ 7 ].