1. Section of Pulmonary Medicine, University of the Philippines-Philippine General Hospital, Manila, Philippines.
2. Centre of Academic Primary Care, University of Aberdeen, Aberdeen, UK.
3. Observational & Pragmatic Research Institute Pte Ltd, Singapore.
4. College of Medicine, Seoul National University, Seoul, Korea.
5. Department of Medicine, University of Hong Kong, Hong Kong Special Administrative Region, China.
6. Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
7. Medical Affairs Department, Mundipharma Pte Ltd, Singapore.
8. Research Partnership Pte Ltd, Singapore.