Study design. A. Experimental setup. Six RPE samples from 6 different donors were hybridized to six microarrays along with the common reference sample. B. Data analysis. The common reference was used to normalize the RPE expression data from the six arrays which enabled comparison of the six individuals.
Booij et al. BMC Genomics 2009 10:164 doi:10.1186/1471-2164-10-164