1. iC42 Clinical Research and Development, Department of Anesthesiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA;
2. Roche Diagnostics GmbH, Penzberg, Germany;
3. Zentrum für Zahn-, Mund- und Kieferheilkunde, Universität Greifswald, Greifswald, Germany