Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (Open Access Publication Fund of Charité)
PRO-IMPLANT Foundation, Berlin (N/A)
Received: 11 April 2019
Accepted: 3 March 2020
First Online: 14 April 2020
Ethics approval and consent to participate
: Approval of the institutional review board (Charité – Universitätsmedizin Berlin, Germany) was obtained (EA1/306/14) and patients provided written informed consent before study inclusion.
: Not applicable.
: The authors declare that they have no competing interests.