1. Department of Medicine, Faculty of Medicine; University of Malaya; Kuala Lumpur Malaysia
2. Department of Pulmonology and Respiratory Medicine; University of Indonesia-Persahabatan Hospital; Jakarta Indonesia
3. Department of Medicine; National University Hospital; Singapore
4. Department of Medicine; Queen Mary Hospital-University of Hong Kong; Hong Kong, SAR China
5. Department of Internal Medicine; Hanoi Medical University; Hanoi Vietnam
6. Division of Respiratory Diseases and Tuberculosis, Department of Internal Medicine, Faculty of Medicine Siriraj Hospital; Mahidol University; Bangkok Thailand