1. Department of Medicine, University of California–San Diego, San Diego, CA, USA
2. Department of Pulmonary Medicine, Kepler University Hospital, Linz, Austria
3. Institute of Nuclear Medicine and Endocrinology, Kepler University Hospital, Linz, Austria
4. Division of Infectious Diseases, Department of Medicine, University of California–San Diego, San Diego, CA, USA
5. Section of Infectious Diseases and Tropical Medicine and Division of Pulmonology, Medical University of Graz, Graz, Austria