Zimmermann, Moritz
Ender, Andreas
Attin, Thomas
Mehl, Albert
Article History
Received: 22 January 2019
Accepted: 28 June 2019
First Online: 8 July 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: For this type of study, formal consent is not required.
: Both companies had no influence in the study design, nor in the collection, analysis, or interpretation of the data, nor in writing or submitting the publication.