1. Department of Anesthesiology and Intensive Care; University of Leipzig Medical Center; Leipzig Germany
2. Cochrane Haematology, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf; Faculty of Medicine and University Hospital Cologne, University of Cologne; Cologne Germany
3. Department of Infectious Diseases and Respiratory Medicine; Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin; Berlin Germany
4. Centre for Biological Threats and Special Pathogens (ZBS), Strategy and Incident Response, Clinical Management and Infection Control; Robert Koch Institute; Berlin Germany
5. Cochrane Metabolic and Endocrine Disorders Group; Institute of General Practice, Medical Faculty of the Heinrich-Heine-University Düsseldorf; Düsseldorf Germany
6. Department of Respiratory Medicine; Christian Medical College; Vellore India
7. Department of Pulmonary Medicine; Christian Medical College; Vellore India