1 Department of Pneumology, Osakidetza, Universitary Hospital of Galdakao-Usansolo, Barrio Labeaga s/n, 48960, Galdakao, Bizkaia, Spain. ane.urangaecheverria@osakidetza.eus.
2 Department of Pneumology, Osakidetza, Universitary Hospital of Galdakao-Usansolo, Barrio Labeaga s/n, 48960, Galdakao, Bizkaia, Spain.
3 Research Unit, Osakidetza, Universitary Hospital of Basurto, Bilbao, Bizkaia, Spain.
4 Health Services Research on Chronic Patients Network (REDISSEC), Galdakao, Bizkaia, Spain.
5 Institute of Research in Health Services Kronikgune, Barakaldo, Bizkaia, Spain.
6 Research Unit, Osakidetza, Universitary Hospital of Galdakao-Usansolo, Galdakao, Bizkaia, Spain.
7 Department of Pneumology, Osakidetza, Universitary Hospital of Basurto, Bilbao, Bizkaia, Spain.
8 Department of Pneumology, Osakidetza, Universitary Hospital of Alava, Vitoria, Alava, Spain.
9 Department of Pneumology, Osakidetza, Hospital of San Eloy, Barakaldo, Bizkaia, Spain.