Received: 14 June 2019
Accepted: 3 October 2019
First Online: 22 October 2019
Ethics approval and consent to participate
: The study was implemented in accordance with Swedish law [CitationRef removed] in terms of the directive on ethics in healthcare research. Incident reports are public documents [CitationRef removed] and therefore approval from ethics committee was not required [CitationRef removed]. The data register was in anonymous form and the data were kept in a locked space to which only the authors had access. Data were analysed and presented on a group level [CitationRef removed, CitationRef removed].
: Not applicable.
: The authors declare that they have no competing interests.