Grasl, Stefan
Janik, Stefan
Grasl, Matthaeus Christoph
Parschalk, Bernhard
Erovic, Boban M.
Haymerle, Georg http://orcid.org/0000-0001-9523-7489
Article History
Received: 8 October 2019
Accepted: 9 December 2019
First Online: 17 December 2019
Compliance with ethical standards
:
: Stefan Grasl, Stefan Janik, Matthaeus Ch. Grasl, Bernhard Parschalk, Boban M. Erovic and Georg Haymerle declare that they have no competing interests and no financial disclosures.