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Article History

Received: 23 May 2019

Accepted: 18 December 2019

First Online: 4 January 2020

Ethics approval and consent to participate

: Upon written request, the chairman of the local ethics committee deemed the obtainment of consent to participate to be unnecessary as no patients were to be involved in the survey (statement 15.3.2016). It was an anonymous questionnaire; therefore, no consent from the participating doctors was required.Address of the local ethics committee:Ethic Committee Medical University Graz,Chairman: Josef Haas, Ao.Univ.-Prof.i.R. Dipl.-Ing. Dr.techn..Auenbruggerplatz 2, 3.OG, 8036 Graz.e-mail: ethikkommission@medunigraz.at

: Not applicable.

: The authors declare that they have no competing interests.