Klein Nulent, Thomas J. W.
Valstar, Matthijs H.
Smit, Laura A.
Smeele, Ludwig E.
Zuithoff, Nicolaas P. A.
de Keizer, Bart
de Bree, Remco
van Es, Robert J. J.
Willems, Stefan M.
Article History
Received: 3 October 2019
Accepted: 7 April 2020
First Online: 5 June 2020
Ethics approval and consent to participate
: For this study on residual tissue formal consent is not required. This was approved by both the institutional Medical and Biobank Research Ethics Committee, protocol numbers UMCU 16–564 and 17–073 respectively. This is in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Not applicable.
: The authors declare that they have no competing interests.