1 Department of Infectious Diseases, The University of Texas MD Anderson Cancer Center, Houston, TX, United States of America

2 Department of Infectious Diseases, Respiratory Institute, Cleveland Clinic, Cleveland, OH, United States of America

3 Department of Internal Medicine, University of Connecticut, Farmington, CT, United States of America

4 Owlstone Medical Ltd, Cambridge, United Kingdom

5 Department of Pulmonary Medicine and Critical Care, Respiratory Institute, Cleveland Clinic, Cleveland, OH, United States of America

6 Department of Computer Science, Stanford University, Stanford, CA, United States of America

7 American Board of Pathology, Farmington, United States of America