Haugen, Johanne
Basnet, Sudha
Hardang, Ingrid M
Sharma, Arun
Mathisen, Maria
Shrestha, Prakash
Valentiner-Branth, Palle
Strand, Tor A
Article History
Received: 16 November 2016
Accepted: 19 February 2017
First Online: 16 August 2017
Competing interests
: The authors declare no conflict of interest.