1. Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh School of Medicine and University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania;
2. Veterans Affairs Pittsburgh Health System, Pittsburgh, Pennsylvania;
3. School of Medicine, Tsinghua University, Beijing, China;
4. Department of Medicine and
5. Department of Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania;
6. Division of Hematology-Oncology, Department of Medicine,
7. Tumor Microenvironment Center, and
8. Department of Immunology and
9. Cancer Immunology and Immunotherapy Program, University of Pittsburgh Medical Center Hillman Cancer Center, Pittsburgh, Pennsylvania; and
10. Center for Medicine and the Microbiome, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania