About the Authors
Anaesthesiology Department Z, Bispebjerg Hospital, Copenhagen, Denmark
Centre of Head and Orthopaedics, Anaesthesiology Department 4231, Copenhagen University Hospital, Copenhagen, Denmark
Danish Society for Patient Safety, P610 Hvidovre Hospital, Hvidovre, Denmark
The authors have declared that no competing interests exist.
Conceived and designed the experiments: MN MLF. Performed the experiments: MN MLF. Analyzed the data: JA. Contributed reagents/materials/analysis tools: MN MLF JA. Wrote the paper: MN. Revised and approved manuscript: MLF JA.