Funding for this research was provided by:
Folkhälsomyndigheten (04287-2017, 05031-2018)
Received: 20 August 2019
Accepted: 26 May 2020
First Online: 16 June 2020
Ethics approval and consent to participate
: Ethical approval was not required for this systematic review.
: The authors, Susanne Andermo, Mats Hallgren, Thi-Thuy-Dung Nguyen, Sofie Jonsson, Solveig Petersen Marita Friberg, Anja Romqvist, Brendon Stubbs, Liselotte Schäfer Elinder, Solveig Petersen, Marita Friberg, and Liselotte Elinder, declare that they have no competing interests.