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. 2011 Feb 16;93(4):381–393. doi: 10.2106/JBJS.I.00933

TABLE II.

Angiogenesis Histology Data*

Cells per High-Power Field
Factor VIII Immobilized Groups Loaded Groups
2 weeks
 Mean 0.8a 1.6a,b
 Median 0.0 2.0
 Standard deviation 1.0 1.1
4 weeks
 Mean 1.1 0.7b
 Median 0.0 0.0
 Standard deviation 1.4 0.9
*

The letters a and b identify the two data points being compared in each case, with both a and b indicating a p value of 0.08.