Hoogslag, V. D. N.
van Essen, T. A.
Dijkman, M. D.
Moudrous, W.
Schoonman, G. G.
Peul, W. C.
Article History
Received: 25 December 2021
Accepted: 30 June 2022
First Online: 1 August 2022
Declarations
:
: 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. Even though formal consent is not required for this type of study, informed consent was obtained for the long term health-related quality of life questionnaires, in accordance with the ethical standards of the institutional and national research committee. The study was approved by the medical ethics committee of the Leiden University Medical Centre. All patients and caregivers who participated gave written informed consent.
: Not required.
: The authors declare that they have no competing interests.