Received: 4 April 2019
Accepted: 3 December 2020
First Online: 12 December 2020
Ethics approval and consent to participate
: This article does not contain any studies with animals or human participants performed by any of the authors. Hence, no formal ethical approval was required for the research described in this manuscript. Informed written consent for the survey was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.