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. 2009 May 29;9:165. doi: 10.1186/1471-2407-9-165

Table 4.

Permutation test to determine the inter-observer variability for categorized IHC variables (n = 352)

Visual 1 Visual 2 Machine 1
Visual 1 - - -
Visual 2 0.426 - -
Machine 1 1 × 10-4 0.001 -
Machine 2 1 × 10-4 1 × 10-4 1 × 10-4