Funding for this research was provided by:
Horizon 2020 (6342388)
Received: 23 September 2017
Accepted: 17 January 2018
First Online: 13 February 2018
Ethics approval and consent to participate
: Ethical approval was obtained in Belgium (Comité d’Ethique Hospitalo-Facultaire, Cliniques Universitaires de Saint-Luc - UCL) and Ireland (Clinical Research Ethics Committee of the Cork Teaching Hospitals). In the Netherlands (Medical Ethics Review Committee UMC Utrecht) and Switzerland (Kantonale Ethikkommission Bern (KEK)), official ethical approval was not required, as the ethics committees confirmed that the relevant legislation was not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
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