Barsegian, Vahé
Müller, Stefan P.
Möckel, Daniel
Horn, Peter A.
Bockisch, Andreas
Lindemann, Monika http://orcid.org/0000-0001-6708-4390
Article History
Received: 13 July 2016
Accepted: 26 September 2016
First Online: 8 October 2016
Compliance with ethical standards
:
: This study was performed without external funding.
: The authors declare that they have no conflict of interest.
: All procedures were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.