1 Department of Pathology and Molecular Pathology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
2 Department of Cardiology, University Heart Center, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
3 Institute for Intensive Care Medicine, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
4 Division of Infectious Diseases, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
5 Department of Internal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
6 Biomedical Optics Research Laboratory, Department of Neonatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
7 Department of Pathology and Molecular Pathology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland. Electronic address: holger.moch@usz.ch.