Magnusson, Peter https://orcid.org/0000-0001-7906-7782
Liv, Per
Article History
Received: 21 June 2017
Accepted: 24 May 2018
First Online: 4 June 2018
Ethics approval and consent to participate
: The study was approved by the Regional Ethical committee in Uppsala (Dnr 2015/060). All patients gave their written consent to participate in the study.
: The authors declare that they have no competing interests.
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