1. Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
2. Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, Missouri 63130, United States
3. Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri 63130, United States
4. Department of Pathology and Immunology, Washington University in St. Louis, St. Louis, Missouri 63110, United States
5. Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri 63110, United States
6. Siteman Cancer Center, Washington University in St. Louis, St. Louis, Missouri 63110, United States