1. Department of Clinical Science and Education, Center for Resuscitation Science, Karolinska Institutet, Södersjukhuset, 11883 Stockholm, Sweden
2. Department of Clinical Sciences, Lund University, Skane University Hospital, Cardiology, 22385 Lund, Sweden
3. Department of Medicine, Karolinska Institutet, Solna, 17177 Stockholm, Sweden
4. Function Perioperative Medicine and Intensive Care, Karolinska University Hospital, 17176 Stockholm, Sweden