Fosså, S. D.
Fung, C.
Dahl, A. A.
Article History
First Online: 28 August 2018
Compliance with ethical guidelines
:
: S.D. Fosså, C. Fung and A.A. Dahl declare that they have no competing interests.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committees and with the 1975 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the mentioned studies.