Bjurling-Sjöberg, Petronella http://orcid.org/0000-0003-0245-3057
Wadensten, Barbro
Pöder, Ulrika
Jansson, Inger
Nordgren, Lena
Funding for this research was provided by:
Centre for Clinical Research Sörmland (75568)
Article History
Received: 3 November 2017
Accepted: 16 October 2018
First Online: 6 November 2018
Ethics approval and consent to participate
: The study has been performed in accordance with the Declaration of Helsinki and was approved by the Regional Ethical Review Board of Uppsala, Sweden (2012/166). Written as well as verbal informed consent to participate in the study has been obtained from the participants.
: Not applicable.
: The authors declare that they have no competing interests.
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