Funding for this research was provided by:
Research Fund at Skaraborg Hospital, Skövde, Sweden
Skaraborg Institute for Research and Development, Skövde, Sweden
Riksbankens Jubileumsfond, Sweden
Article History
Received: 11 March 2020
Accepted: 4 September 2020
First Online: 22 September 2020
Ethics approval and consent to participate
: The authors affirm having followed professional ethical guidelines in preparing this work. All procedures performed in the study involving human participants were in accordance with the ethical standard of the Institutional and National Research Committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by Gothenburg University and The Sahlgrenska Academy Ethics committee (D: nr Ö 669–03). Parental written informed consent was obtained from all individual participants included in the study.
: Consent for publication.
: The authors declare that they have no competing interests.