Received: 17 October 2017
Accepted: 8 April 2018
First Online: 21 May 2018
Change Date: 18 July 2018
Change Type: Correction
Change Details: Correction to: BMC Cancer (2018) 18:577 DOI ExternalRef removed
Ethics approval and consent to participate
: The results shown here are based upon data generated by the TCGA Research Network: ExternalRef removed [CitationRef removed, CitationRef removed]. All data downloaded from TCGA is publically accessible and de-identified. Patients were consented by the TCGA Research Network. Documentation about consent and sample acquisition is publically posted: ExternalRef removed.
: The authors declare that they have no competing interests.
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