Whelan, Beth http://orcid.org/0000-0001-7014-4171
Hjörleifsson, Stefan http://orcid.org/0000-0002-5936-0161
Schei, Edvin http://orcid.org/0000-0002-7826-4124
Article History
Received: 7 October 2020
Revised: 31 March 2021
Accepted: 13 April 2021
First Online: 5 May 2021
Conflict of interest
: B. Whelan, S. Hjörleifsson and E. Schei declarethat they have no competing interests.