HI,
  I am interested in knowing if it is advisible to combine microarray data from the dame platform for different cell lines for normalization and analysis. Recently I noticed that this was done at the Genomic foundation of novartis web portal for the NCI60 cell lines. They have merged NCI60 cell data with another 40 cancer cell lines. I was wondeing if some some has experience with this and under what condition will this be a valid protocol.


   Amin  
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