1. Cardiovascular Anesthesia Research Laboratory, Institute of Anesthesiology, University Hospital Zurich
2. Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
3. Heinrich-Pette Institute for Experimental Virology and Immunology, University of Hamburg, Hamburg, Germany
4. Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland
5. Section Pr2/Retroelements, Paul-Ehrlich Institute, Langen, Germany