Funding for this research was provided by:
Stichting Chirurg en Onderzoek Kennemerland (-)
VUmc Cancer Center Amsterdam (Project grant CCA 2011-5-06)
Center for Translational Molecular Medicine, DeCoDe project (030-101)
Received: 22 May 2019
Accepted: 31 July 2019
First Online: 16 August 2019
Ethics approval and consent to participate
: Clinical data and tumour tissue was obtained conform the “Code for Proper Secondary Use of Human Tissue in The Netherlands”<sup>34</sup>.
: Not applicable.
: Dr. R.J.A. Fijneman is member of the editorial board (Associate Editor) of BMC Gastroenterology.Furthermore, the authors declare that they have no competing interests.