1. Experimental
Pathology, Department of Clinical and Experimental Medicine, Linköping, University, SE-581 85 Linköping, Sweden
2. Royal
Institute of Technology, Department of Applied Physics, Experimental
Biomolecular Physics, Scilifelab, 171 65 Solna, Sweden
3. Departments of Biomedical Engineering and Materials Science & Engineering, University of California, Davis, California 95616, United States