Christensen, G.L.
Halgreen, J.R.
Milenkovski, M.
Köse, A.
Quardon, N.
Jørgensen, N.R. http://orcid.org/0000-0001-9624-5210
Article History
Received: 2 November 2018
Accepted: 2 January 2019
First Online: 24 January 2019
Compliance with ethical standards
:
: 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. For this type of study, formal consent is not required.
: None.