1 Medical Research Institute of New Zealand, Wellington, New Zealand. Electronic address: Richard.Beasley@mrinz.ac.nz.
2 Division of Pulmonary Medicine, Far Eastern Memorial Hospital, Taoyuan City, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City, Taiwan.
3 Division of Thoracic Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.
4 Respiratory Center, Bach Mai Hospital, Hanoi, Vietnam; Department of Internal Medicine, Hanoi Medical University, Hanoi, Vietnam.