Cederlund, Mats http://orcid.org/0000-0001-7295-3669
Article History
First Online: 4 May 2019
Compliance with Ethical Standards
:
: Author declares that he has no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The present study was approved by the Human Ethics committee at the Medical Faculty at the University of Gothenburg, Sweden (Dnr 343-14). Informed and signed consent was obtained from all parent(s)/caregiver(s) to the participating children.