1Research Fellow, Department of Anesthesiology, University of Wuerzburg.
2Professor of Statistics, Department of Mathematical Sciences/Statistics, University of Oulu.
3Senior Anesthesiologist, Department of Anesthesiology, University of Oulu.
4Senior Anesthesiologist, Department of Anesthesiology, University of Wuerzburg.
5Professor of Anesthesiology and Chair, Department of Anesthesiology, University of Wuerzburg.