Funding for this research was provided by:
Governmental Funding of Clinical Research within National Health Services (47737)
Received: 16 December 2019
Accepted: 19 February 2020
First Online: 7 March 2020
Ethics approval and consent to participate
: 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 study was approved by the Regional Ethics Committee in Lund, Sweden (committee’s reference number: LU 51–90 and 530/2008). Informed consent was obtained from individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interest.