Funding for this research was provided by:
Helse Sør-Øst RHF (2012056)
Norges Forskningsråd (250459)
Universitetet i Oslo
Received: 5 March 2019
Accepted: 17 July 2019
First Online: 31 July 2019
Ethics approval and consent to participate
: The Norwegian Food Safety Authority approved all experiments in advance of their implementation (approval number 4385).
: Not applicable.
: The authors declare that they have no competing interests.