1 Section of Infectious Diseases, Department of Medicine, Boston Medical Center and Boston University School of Medicine, Boston, MA, USA.
2 Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA.
3 Pulmonary Clinical Medicine Section, Cardiovascular and Pulmonary Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, Bethesda, MD, USA; National Institutes of Health, Bethesda, MD, USA.
4 Section of Infectious Diseases, Department of Medicine, Boston Medical Center and Boston University School of Medicine, Boston, MA, USA. Electronic address: edward.jones-lopez@bmc.org.