Lashkarivand, Aslan http://orcid.org/0000-0002-3554-2972
Sorteberg, Wilhelm
Rosseland, Leiv Arne
Sorteberg, Angelika
Article History
Received: 1 October 2019
Accepted: 19 December 2019
First Online: 24 January 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: For this type of study formal consent is not required.