Cristiani, Riccardo http://orcid.org/0000-0002-3286-4060
Mikkelsen, Christina
Forssblad, Magnus
Engström, Björn
Stålman, Anders
Article History
Received: 11 September 2018
Accepted: 1 February 2019
First Online: 18 February 2019
Compliance with ethical standards
:
: Each author declares that no possible conflict of interest (financial or nonfinancial) exist in connection with this study.
: This study was approved from the Regional Ethics Committee, Karolinska Institutet, Diarie number: 2016/1613-31/2.
: For this type of study, formal consent is not required.