1 Department of Surgery, Division of Cardiothoracic Surgery, Transplant and Stem Cell Immunobiology-Lab, University of California San Francisco, San Francisco, CA, USA.
2 Department of Cardiovascular Surgery, University Heart Center Hamburg, Hamburg, Germany.
3 Cardiovascular Research Center Hamburg and DZHK (German Center for Cardiovascular Research), Partner Site Hamburg/Kiel/Luebeck, Hamburg, Germany.
4 Division of Infectious Diseases, UNC Center for AIDS Research, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
5 Howard Hughes Medical Institute, Institute for Immunity, Transplantation and Infection, and Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA.
6 Department of Microbiology and Immunology and the Parker Institute for Cancer Immunotherapy, University of California San Francisco, San Francisco, California, USA.
7 Department of Surgery, Division of Cardiothoracic Surgery, Transplant and Stem Cell Immunobiology-Lab, University of California San Francisco, San Francisco, CA, USA. Sonja.Schrepfer@ucsf.edu.