Received: 10 October 2021
Accepted: 20 October 2021
First Online: 2 November 2021
: This project was a part of the DED quality-assessment work at Haukeland University Hospital and was approved by the data protection officer at that hospital (approval no. 1217). The project protocol was submitted for consideration to the Regional Ethical Committee and deemed exempt from review as it was classified as quality assessment (2018/2265/REK Nord). Consent to participate is not required for quality-assessment projects.
: This is a quality-assessment publication of de-identified data and so consent for publication is not required.
: The authors report no competing interests.