1. Home Hospitalization Unit and Department of Respiratory Medicine; Hospital Universitario de Gran Canaria Dr. Negrín; Las Palmas de Gran Canaria Spain
2. Home Hospitalization Unit; Hospital Torrejón Ardoz; Madrid Spain
3. Home Hospitalization Unit; Parc Tauli Hospital Universitari; Sabadell Spain
4. Department of Procesos Transversales y Alianzas; Institut Catala de la Salut; Barcelona Spain
5. Department of Hospital Admissions; Hospital de Gran Canaria Dr. Negrin; Las Palmas de Gran Canaria Spain
6. Home Hospitalization Unit; Hospital Universitario de Gran Canaria Dr. Negrín; Las Palmas de Gran Canaria Spain
7. Departament of Pneumology; Consorcio Hospital General de Valencia; Valencia Spain
8. Department of Pneumology; Hospital Universitario San Juan de Alicante; Alicante Spain