Rapp, Kilian https://orcid.org/0000-0003-1625-2571
Mikolaizak, Stefanie
Rothenbacher, Dietrich
Denkinger, Michael D.
Klenk, Jochen
Article History
Received: 30 January 2018
Accepted: 8 June 2018
First Online: 16 June 2018
Ethics approval and consent to participate
: All participants provided written informed consent and the Ethics Committee of the University of Ulm had approved the study (application no. 318/08 and 50/12).
: The authors declare that they have no competing interests.
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