Ek, Amanda http://orcid.org/0000-0001-9833-8306
Ekblom, Örjan
Hambraeus, Kristina
Cider, Åsa
Kallings, Lena V.
Börjesson, Mats
Article History
Received: 11 June 2018
Accepted: 20 August 2018
First Online: 23 August 2018
Compliance with ethical standards
:
: The authors declare that there is no conflict of interest.
: According to Swedish regulations, written informed consent is not required for registration in national quality registries; however, all patients must have information of their participation in the registry and have the right to withdraw their participation. The study has been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and the regional ethical review board in Stockholm approved the study (2013/2067-31).