Abrahamson, Josefin
Aminoff, Anna Swärd
Todd, Carl
Agnvall, Cecilia
Thoreson, Olof
Jónasson, Pall
Karlsson, Jón
Baranto, Adad
Article History
Received: 22 February 2018
Accepted: 1 June 2018
First Online: 7 June 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the regional and institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study. For participants younger than 18 years, informed written consent was also obtained from one parent.