Christie, Hartvig http://orcid.org/0000-0003-0550-1034
Bekkby, Trine
Norderhaug, Kjell Magnus
Beyer, Jonny
Jørgensen, Nina Mari
Article History
Received: 14 March 2018
Revised: 14 December 2018
Accepted: 18 December 2018
First Online: 2 January 2019
Compliance with ethical standards
:
: There are no conflicts of interest related to field work environmental, ethics of safety standards, and no conflicts related to ASBD project or ENI as funding of the study