Abolhassani, Amir-Reza
Schuler, Gerold
Kirchberger, Michael Constantin http://orcid.org/0000-0002-9573-3009
Heinzerling, Lucie
Article History
Received: 8 July 2019
Accepted: 9 August 2019
First Online: 6 September 2019
Compliance with ethical standards
: Study participants gave written consent for anonymous analyzation of data. This study was approved by the institutional review board of the medical faculty of the University Erlangen and all procedures performed in studies were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declarations.
: The authors declare that they have no conflict of interest.