Kam, Wan http://orcid.org/0000-0002-4057-0652
Zhang, Zhang-Jin
Bäärnhielm, Sofie http://orcid.org/0000-0002-5303-9166
Article History
First Online: 8 April 2019
Compliance with Ethical Standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest. The authors alone are responsible for the content and writing of the paper.
: All procedures performed in this study 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. Ethics approval was obtained from the ethics committee: Institutional Review Board of the University of Hong Kong/Hospital Authority Hong Kong West Cluster. The assigned IRB reference number was UW 16-184.
: Informed consent was obtained from all individual participants included in the study.