Øynes, Mona
Strøm, Bergliot
Tveito, Bente
Hafslund, Bjørg
Funding for this research was provided by:
Western Norway University Of Applied Sciences
Article History
Received: 4 October 2019
Revised: 22 January 2020
Accepted: 9 March 2020
First Online: 28 March 2020
Compliance with ethical standards
:
: The scientific guarantor of this publication is Associate Professor Bjørg Hafslund.
: The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
: Statistician and Associate Professor Roy Miodini Nilsen kindly provided statistical advice for this manuscript.
: Written informed consent was not required for this study because the nature of our study was a systematic review.
: Institutional Review Board approval was not required because the nature of our study was a systematic review.
: • Systematic review and meta-analysis