1. Department of Radiology and Biomedical Imaging, University of California, San Francisco, 1600 Fourth Street, Box 2520, San Francisco, California 94158, United States
2. Microbiology and Immunology, University of California, San Francisco, 600 16th Street, San Francisco, California 94158, United States
3. Department of Radiology, University of Virginia, 480 Ray C. Hunt Drive, Charlottesville, Virginia 22903, United States
4. Division of Infectious Diseases, School of Medicine, University of California, San Francisco, 505 Parnassus Avenue, San Francisco, California 94143, United States
5. Zuckerberg San Francisco General Hospital, 1001 Potrero Avenue, San Francisco, California 94110, United States