Received: 13 September 2018
Accepted: 8 January 2019
First Online: 17 January 2019
Ethics approval and consent to participate
: Institutional ethics board approval was granted prior to the start of the study. Study number: A01-E02-15B.
: By completing the survey participants consented to participation in the study and had the right to withdraw at any point.
: The authors declare that they have no competing interests.
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