Additional File 2.

Relationship between size and rank of pathways. The 163 pathways, whose sizes are between 20 and 300, are ranked by Student's t-test p-value in all fourteen datasets. Smaller ranks correspond to more significance. For each rank, a box plot was prepared to summarize the sizes of the pathways at that rank in the fourteen datasets. Median sizes are joined by thick line to show the overall size-rank trend.

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Hwang BMC Genomics 2012 13(Suppl 7):S26   doi:10.1186/1471-2164-13-S7-S26