König, Alexandra https://orcid.org/0000-0001-6332-3817
Grippenkoven, Jan
Article History
Received: 3 April 2019
Accepted: 11 December 2019
First Online: 31 December 2019
Competing interests
: We have no conflicts of interest to disclose.We confirm that neither the manuscript nor any parts of its content are currently under consideration or published in another journal.