van Nijnatten, T. J. A. http://orcid.org/0000-0002-6431-3538
van Tiel, L. P. T.
Voogd, A. C.
Groothuis-Oudshoorn, C. G. M.
Siesling, S.
Lobbes, M. B. I.
Article History
Received: 4 May 2020
Accepted: 31 August 2020
First Online: 15 September 2020
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: All patient data were received anonymously in this study (without patient information) from the Netherlands Cancer Registry (NCR). According to the Dutch law, all cancer patients are included in the NCR as maintained by the Netherlands Comprehensive Cancer Organisation (IKNL), unless the patient objected to be registered. Consequently, informed consent was not applicable for this study.