1. Pneumology Service Hospital Universitari Sant Joan d'Alacant Alicante Spain
2. Home Hospitalization Unit, Medical and Nursing Direction, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) Universitat de Barcelona Barcelona Spain
3. Pneumology Service Hospital Universitario A Coruña Coruña Spain
4. AstraZeneca Farmacéutica Spain S.A Madrid Spain
5. Smoking Cessation Service Community of Madrid Madrid Spain