Received: 29 November 2018
Accepted: 10 June 2019
First Online: 21 June 2019
Ethics approval and consent to participate
: Patient consent was obtained from all patients prior to study inclusion. The study was approved by the Regional Ethical Review Board in Gothenburg (Dnr 062-17, 20 February 2017).
: Consent was obtained from all patients to publish quotations anonymously.
: The authors declare that they have no competing interests.