Funding for this research was provided by:
Mathys AG
Article History
Received: 21 October 2019
Accepted: 19 December 2019
First Online: 28 February 2020
Compliance with the ethical standards
:
: The authors declare that they have no conflict of interest.
: The study has been performed in compliance with the Helsinki Declaration, has been approved by the local ethics committee (EK 250062015) and registered at ExternalRef removed (NCT03032133).
: All patients signed informed consent.