Funding for this research was provided by:
Vetenskapsrådet (2016-00248)
Sällskapet Barnavård
H.K.H. Kronprinsessan Lovisas Förening för Barnasjukvård
Article History
Accepted: 6 December 2019
First Online: 14 December 2019
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: This was a systematic review and meta-analysis and does not contain any studies with human participants performed by any of the authors.