1. Department of Pulmonary and Infectious Diseases, Nordsjællands Hospital-Hillerød, Hillerød, Denmark
2. University of Copenhagen, Faculty of Health and Medical Sciences, Copenhagen, Denmark
3. Department of Infectious Diseases, Hvidovre Hospital, Hvidovre, Denmark
4. Division of Pulmonary Inflammation, Department of Infectious Diseases and Pulmonary Medicine, Charité-Universitätsmedizin, Berlin, Germany
5. Community Acquired Pneumonia Competence Network–Stiftung, Hannover, Germany
6. Department of Respiratory Medicine, Medical Clinic I, Goethe University Hospital, Frankfurt/Main, Germany; and
7. Medical Department O, Herlev and Gentofte Hospital, Copenhagen, Denmark