Bartek, Jiri Jr
Jakola, Asgeir S.
Skyrman, Simon
Förander, Petter
Alpkvist, Peter
Schechtmann, Gaston
Glimåker, Martin
Larsson, Agneta
Lind, Folke
Mathiesen, Tiit
Article History
Received: 23 February 2016
Accepted: 11 April 2016
First Online: 25 April 2016
Compliance with ethical standards
:
: The authors report no conflict of interest concerning the materials or methods used in this study or the findings specified in this paper.
: No funding was received for this research.
: All authors certify that they have no affiliations with or involvement in any organisation or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.
: 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.