1. Faculty of Social and Political Sciences, University of Peloponnese, Corinth, Greece
2. Health Policy Institute, Athens, Greece
3. The Centre for Evidence Based Medicine (CEMBE), Faculty of Medicine, University of Lisbon, Lisbon, Portugal
4. 5th Pulmonary Department, “Sotiria” Chest Diseases Hospital, Athens, Greece
5. Boehringer Ingelheim Ellas, Athens, Greece
6. Boehringer Ingelheim, Lisbon, Portugal
7. Boehringer Ingelheim, De Boelelaan 32, Amsterdam, 1083 HJ, The Netherlands