Abrahamsson, Helene
Eriksson, Lars
Abrahamsson, Peter
Häggman-Henrikson, Birgitta http://orcid.org/0000-0001-6088-3739
Funding for this research was provided by:
Malmö University
Article History
Received: 20 November 2018
Accepted: 16 October 2019
First Online: 15 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This is a systematic review article and therefore no ethical approval is required.
: For this type of study, informed consent is not required.