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Authors
Torstensson, Thomas
Butler, Stephen
Lindgren, Anne
Peterson, Magnus
Nilsson-Wikmar, Lena
Eriksson, Margaretha
Kristiansson, Per http://orcid.org/0000-0001-7346-1674
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Funding
Funding for this research was provided by:
Faculty of medicine, Uppsala University
County Council of Västernorrland
County Council of Stockholm
Faculty of medicine, Karolinska Institutet
Faculty of Medicine, Uppsala University
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Article History
Received: 31 March 2017
Accepted: 14 March 2018
First Online: 27 March 2018
Authors’ information
: Not applicable.
: Ethical approval was granted by the Medical Ethics Committee of Umeå University, Sweden (2003–01-16, Dnr 02–484 and 2011–03-01, Dnr 2011–45-31 M) and all participants gave written informed consent. The procedures were in accordance with the ethical standards of the responsible local ethics committee on human experimentation and with the Helsinki Declaration (1975, revised 1983, World Medical Association Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
