1. Division of Pulmonary and Critical Care Medicine, Department of MedicineMassachusetts General Hospital, Harvard Medical School Boston MA USA
2. Division of Pulmonary, Critical Care, and Sleep Medicine, Department of MedicineBeth Israel Deaconess Medical Center, Harvard Medical School Boston MA USA
3. Department of PediatricsWashington University School of Medicine St. Louis MO USA
4. Department of Child HealthThe University of Missouri School of Medicine Columbia MO USA
5. Department of MedicineUniversity of Hong Kong Hong Kong
6. Department of PathologyWonju College of Medicine, Yonsei University Wonju South Korea
7. Department of Respiratory MedicineHyogo College of Medicine Nishinomiya, Hyogo Japan
8. Division of Pulmonary and Critical Care Medicine, Department of MedicineJohn Hopkins School of Medicine Baltimore MD USA
9. Department of Physical TherapeuticsKyoto University Hospital of Medicine Kyoto Japan
10. University of Occupational and Environmental Health Kitakyushu Japan
11. Department of Pulmonary MedicineZhongshan Hospital Shanghai China
12. Fudan University Shanghai China
13. Division of Allergy, Pulmonary, Critical Care, and Sleep Medicine, Department of MedicineBoston University School of Medicine Boston MA USA
14. Department of Internal MedicineKangwon National University Hospital Chuncheon South Korea
15. The Prince Charles HospitalMetro North Hospital and Health Service Brisbane QLD Australia
16. The University of Queensland Thoracic Research Centre at The Prince Charles Hospital Brisbane QLD Australia