Schmidt, Marcus
Zannini, Emanuele
Arendt, Elke K.
Article History
Received: 20 September 2018
Revised: 21 November 2018
Accepted: 24 November 2018
First Online: 5 December 2018
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: The present study did not contain any studies with human or animal subjects.