de Hosson, Lotte D.
Takkenkamp, Tim J.
Kats-Ugurlu, Gursah
Bouma, Grietje
Bulthuis, Marian
de Vries, Elisabeth G. E.
van Faassen, Martijn
Kema, Ido P.
Walenkamp, Annemiek M. E.
Article History
Received: 17 July 2019
Accepted: 26 March 2020
First Online: 8 April 2020
Compliance with ethical standards
:
: None of the authors declare any conflicts of interests regarding this study.
: Since residual archival material was studied, which does not interfere with patient care and does not involve the physical involvement of the patient, no ethical approval was required for this study according to Dutch legislation (the Medical Research Involving Human Subjects Act).
: Although informed consent was not required, all patients still alive (<i>N</i> = 20) were approached and gave their written informed consent to the use of their residual material for research purposes.