1. Department of Pathology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
2. Department of Clinical Medicine, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
3. National Institute of Infectious Diseases, Angoda, Sri Lanka
4. Department of Haematological Medicine, King’s College Hospital, London, UK
5. Department of Anesthesiology and Intensive Care Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany
6. Medical Department, Tem Innovations, Munich, Germany