von Essen, Christoffer http://orcid.org/0000-0001-6871-3267
McCallum, Sebastian
Barenius, Björn
Eriksson, Karl
Article History
Received: 14 December 2018
Accepted: 1 February 2019
First Online: 14 February 2019
Compliance with ethical standards
:
: The authors have no conflicts of interest.
: The study was approved by the regional ethics committee at the Karolinska Institute, Stockholm Sweden (reference no. 2006/404-31/3/2008/1541-32).
: Informed consent was obtained by each patient.