1 Clinical Trial Center University of Leipzig, Liebigstraβe 20, 04103 Leipzig, Germany.
2 Department of Anaesthesia and Intensive Care Medicine, University of Leipzig, Liebigstraβe 20, 04103 Leipzig, Germany.
3 Department of Anaesthesia and Intensive Care Medicine, University of Leipzig, Liebigstraβe 20, 04103 Leipzig, Germany. Electronic address: [email protected].