Hellstern, Victoria
Aguilar-Pérez, Marta
Dukiewicz, Maike
Maier, Gottlieb
Bäzner, Hansjörg
Henkes, Hans http://orcid.org/0000-0002-6534-036X
Article History
Received: 17 February 2020
Accepted: 6 August 2020
First Online: 7 September 2020
Conflict of interest
: V. Hellstern and M. Aguilar-Pérez have a proctoring and consulting agreement with phenox GmbH. M. Dukiewicz, G. Maier and H. Bäzner declare that they have no competing interests. H. Henkes is co-founder and shareholder of phenox GmbH and femtos GmbH.