Andries, Ellen http://orcid.org/0000-0001-7991-1322
Gilles, Annick http://orcid.org/0000-0003-3669-6428
Topsakal, Vedat http://orcid.org/0000-0003-0416-4005
Vanderveken, Olivier http://orcid.org/0000-0002-4088-4213
Van de Heyning, Paul http://orcid.org/0000-0002-8424-3717
Van Rompaey, Vincent http://orcid.org/0000-0003-0912-7780
Mertens, Griet http://orcid.org/0000-0001-8621-0292
Article History
Received: 22 December 2020
Accepted: 25 February 2021
First Online: 8 March 2021
Declarations
:
: The authors have no conflicts of interest to declare.
: All participants gave written informed consent prior to participation in accordance with the Declaration of Helsinki.
: Patients signed informed consent regarding using their data to write and publish this article.
: The study was carried out in conformity with the recommendations of the ethics committee of the University of Antwerp, Antwerp, Belgium and he University Hospital Antwerp, Antwerp, Belgium and the Declaration of Helsinki. The protocols for the control group and the CI users were approved on November 21, 2016 (protocol number: 16/43/450) and June 15, 2015 (protocol number: 15/17/181) respectively.