Funding for this research was provided by:
Received: 11 February 2019
Accepted: 3 July 2019
First Online: 16 July 2019
Ethics approval and consent to participate
: The following ethical review boards (Central Ethic Committee: Ethish Comité UZ Gent, VZW (Non-Profit Organization) AZ Maria Middelares Academic Hospital Ethic Committee, WZV den Olm (Non-Profit Organization) Imelda Hospital: Bonheiden Medical Ethic Committee, De Videnskabsetiske Komiteer, Capital Region; METC Medical Ethics Review Committee: CCMO Cnetral Committee on Research Involving Human Subjects, EPN Regional Ethical Review Board in Linköping: Department for Medical Research Assessment, PTV Foundation for Tor Vergata University Hospital, Rome: Independent Ethic Commitee, MO IRB (formerly WIRB and Capital Region), Western Institutional Review Board (WIRB), Monmouth IRB) approved the research project. All participants provided written consent prior to any study procedures.
: Not applicable.
: The authors declare that they have no competing interests.