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Article History
Received: 13 June 2013
Accepted: 11 May 2014
First Online: 24 August 2014
Change Date: 9 September 2014
Change Type: Erratum
Change Details: In the version of this article initially published online, the superscript 95 for the footnote for “these authors contributed equally to this work” was omitted for the first three authors. The error has been corrected for the print, PDF and HTML versions of this article.
Competing interests
: Some of the SEQC (MAQC-III) Consortium members are employed by companies that provide services or manufacture products or equipment related to gene expression profiling, as can be seen from the affiliations provided by the manuscript authors.