Sander, Anna Lena http://orcid.org/0000-0002-6660-9332
Sommer, Katharina
Kaiser, Antonia Katharina
Marzi, Ingo
Frank, Johannes
Article History
Received: 6 September 2019
Accepted: 27 January 2020
First Online: 8 February 2020
Conflict of interest
: A. L. Sander, K. Sommer, A. K. Kaiser, I. Marzi, and J. Frank declare that they have no conflict of interest.
: All procedures performed in the study involving human participants were in accordance with the ethical standards of the institutional research committee (GN481/15) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.