1. Institut national de la sante et de la recherche medicale, Unité mixte de recherche 1272, Université Sorbonne Paris-Nord, Bobigny, France;
2. Assistance Publique–Hôpitaux de Paris, Service de Pneumologie, Hôpital Avicenne, Bobigny, France;
3. Medical Faculty, University of Belgrade, Belgrade, Serbia;
4. University Clinic for Pulmonary Diseases, Clinical Center of Serbia, Belgrade, Serbia;
5. Department of Pulmonary and Critical Care Medicine, Shanghai Pulmonary Hospital of Tongji University, Shanghai, China;
6. Groupe Hospitalier Paris Saint Joseph, Paris, France;
7. Institute of Pulmocare and Research, Kolkata, India;
8. Department of Medicine, University of Cincinnati Medical Center, Cincinnati, Ohio;
9. Division of Pulmonary and Critical Care, Albany Medical College, Albany, New York;
10. Division of Pulmonary, Critical Care & Sleep Medicine, Brody School of Medicine, East Carolina University, Greenville, North Carolina;
11. Metro Centre for Respiratory Diseases, Noida, India; and
12. University of Medicine and Pharmacy “Carol Davila,” Bucharest, Romania