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Table 1 Comparison between the variability introduced by hybridization and staining effects alone, the cDNA synthesis and transcription process, and cross-platform comparisons. Each value represents the percentage of probesets in each quantile of the array where measurements diverged more than 2-fold from the mean.

From: Identical probes on different high-density oligonucleotide microarrays can produce different measurements of gene expression

  Single platform Single platform Cross platform
  Hybridization only Total process Hybridization only
Highest chip-values 0.012% 0.27% 0.048%
Middle chip-values 0.88% 1.6% 1.31%
Lowest chip-values 6.4% 9.0% 13.0%
Total 7.3% 10.9% 14.1%