| Affiliation: | 1. Division of Infectious Diseases, Brigham & Women's Hospital, Harvard Medical School, , Boston, Massachusetts, USA;2. Division of Infectious Diseases and Geographic Medicine and Center for Primary Care and Outcomes Research, Stanford University School of Medicine, , Stanford, California, USA;3. Department of Radiology, Brigham and Woman's Hospital, Harvard Medical School, , Boston, Massachusetts, USA;4. Division of Pulmonary and Critical Care Medicine, Brigham & Women's Hospital, Harvard Medical School, , Boston, Massachusetts, USA |
