Lagergren, Katarina
Hammar, Mats
Nedstrand, Elizabeth
Bladh, Marie
Sydsjö, Gunilla http://orcid.org/0000-0003-4296-4038
Article History
Received: 10 October 2017
Accepted: 15 October 2018
First Online: 25 October 2018
Ethics approval and consent to participate
: Ethical approval was obtained from the Regional Ethics Committee Board in Linköping, Sweden No. 03–556, 03–557, 07-M66 08–08-M 233–8, 2010/403–31. Patient consent: Not applicable to this study being a register study.
: Not applicable
: The authors declare that they have no competing interests.
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