Received: 10 January 2020
Accepted: 3 April 2020
First Online: 20 May 2020
Ethics approval and consent to participate
: This approval included ethical considerations such as the patient autonomy, obtaining both written and oral informed consent. All participants received a letter describing the purpose and procedure of the study. The patients who decided to participate in the study were informed of their right to end their participation at any time and were guaranteed that this would not affect treatment and care in any way, that the study records would be kept confidential and that their contributions would be unidentifiable in the final report. All participants then signed a consent form. This study was approved by the Gothenburg regional ethical committee EPN 379–16.
: Both written and verbal informed consent was obtained and approved by the Gothenburg regional ethical committee EPN 379–16. Prior to giving consent, participants were informed that results of this study may be the subject of journal articles. Written consent from all patients was obtained to present results based on the study data.
: The authors declare that they have no competing interests.