Kiessling, David
Christ, Hildegard
Gietzelt, Caroline
Schaub, Friederike
Dietlein, Thomas S.
Cursiefen, Claus
Heindl, Ludwig M.
Enders, Philip http://orcid.org/0000-0002-9527-4957
Article History
Received: 20 August 2018
Revised: 18 October 2018
Accepted: 12 November 2018
First Online: 28 November 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The Institutional Review Board (IRB)/Ethics Committee waived the need for approval due to local regulations on retrospective single-center studies.