Funding for this research was provided by:
Riksbankens Jubileumsfond (P11-0866:1)
Myndigheten för Samhällsskydd och Beredskap (2016-486, 2016-7045)
First Online: 24 May 2017
Compliance with ethical standards
: This study was funded by Riksbankens Jubileumsfond P11–0866:1 and Myndigheten för Samhällsskydd och Beredskap 2016–486 and 2016–7045.
: 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.
: Informed consent was obtained from all individual participants included in the study.
: This article does not contain any studies with animals performed by any of the authors.