Received: 8 November 2019
Accepted: 23 March 2020
First Online: 30 March 2020
Ethics approval and consent to participate
: The study was registered at the Danish Data Protection Agency. In accordance with Danish legislation (Act on Research Ethics Review of Health Research Projects § 14 stk. 2 dated 15/09/2017 and the Danish Health Act § 46 stk. 2 dated 02/11/2018), the Danish Patient Safety Authority approved the project, including transmission of the data from the patient records. Data were handled in accordance with the Danish law on Personal Data Protection.
: The Danish Patient Safety Authority approved the project, including publication of the results.
: The authors declare that they have no competing interests.