Kästel, Ingrid http://orcid.org/0000-0002-3942-798X
de Quincey, Giles
Neugebauer, Jörg
Sader, Robert
Gehrke, Peter http://orcid.org/0000-0002-0412-5615
Article History
Received: 17 May 2019
Accepted: 29 October 2019
First Online: 12 December 2019
Ethics approval and consent to participate
: Not applicable
: Not applicable
: Ingrid Kästel, Giles de Quincey, Jörg Neugebauer, Robert Sader, and Peter Gehrke declare that they have no competing interests.