| Affiliation: | 1. Department of Anesthesiology, Surgical Services and Intensive Care Medicine, Karolinska University Hospital, Solna, Stockholm;2. School of Medicine and Health Science, ?rebro University, ?rebro, Sweden;3. Department of Anesthesia and Intensive Care, Capio St G?rans Hospital, Stockholm, Sweden;4. Clinical Epidemiology and Biostatistics, Faculty of Medicine and Health, ?rebro University, ?rebro, Sweden;5. Audiological Research Centre, School of Medicine and Health Science, ?rebro University/Swedish, Institute of Disability Research, ?rebro, Sweden;6. Department of Anesthesia and Intensive care, School of Health and Medical Sciences, ?rebro University, ?rebro, Sweden |
