Schwake, Michael http://orcid.org/0000-0003-4062-4785
Schipmann, Stephanie
Müther, Michael
Köchling, Michaela
Brentrup, Angela
Stummer, Walter
Article History
Received: 9 January 2019
Accepted: 28 March 2019
First Online: 13 April 2019
Compliance with ethical standards
:
: Walter Stummer has received consultant fees from Medac, Wedel, Germany. All other authors declare that they have no conflict of interest.
: For this type of study, formal consent is not required.