Graupner, Oliver http://orcid.org/0000-0003-3732-7464
Helfrich, Franziska
Ostermayer, Eva
Lobmaier, Silvia M.
Ortiz, Javier U.
Ewert, Peter
Wacker-Gussmann, Annette
Haller, Bernhard
Axt-Fliedner, Roland
Enzensberger, Christian
Abel, Kathrin
Karge, Anne
Oberhoffer, Renate
Kuschel, Bettina
Article History
Received: 8 March 2019
Accepted: 17 May 2019
First Online: 28 May 2019
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.