Al-Ani, A.
Takriti, M.
Schmoeckel, J.
Alkilzy, M.
Splieth, C. H.
Funding for this research was provided by:
DGZMK, BZÄK, KZBV, Wrigley Company Foundation (11112016)
Article History
Received: 26 July 2019
Accepted: 1 September 2020
First Online: 4 October 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Informed consent was explained for all individual participants included in the study, and a signature of their approval was obtained after an approval by the Ethics Committee of the University of Greifswald (Reg. No. BB 021/17) and following the guidelines and recommendations for securing good epidemiological practice [CitationRef removed].