Buchholz, Kerstin
Liebl, Patrick
Keinki, Christian
Herth, Natalie
Huebner, Jutta https://orcid.org/0000-0003-4931-568X
Article History
Received: 21 April 2017
Accepted: 25 January 2018
First Online: 19 February 2018
Conflict of interest
: K. Buchholz, P. Liebl, C. Keinki, N. Herth, and J. Huebner declare that they have no competing interests.
: The study was approved by the Ethics Committee of the University Hospital of the J.W. Goethe University, Germany. All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008.