1 Respiratory Service, Osakidetza Basque Health Service, Galdakao-Usansolo University Hospital, Galdakao, Spain; Biocruces Bizkaia Health Research Institute, Barakaldo, Spain. Electronic address: pedropablo.espanayandiola@osakidetza.eus.
2 Research and Innovation Unit, Osakidetza Basque Health Service, Basurto University Hospital, Bilbao, Spain; Kronikgune Institute for Health Services Research, Barakaldo, Spain; Health Service Research Network on Chronic Diseases (REDISSEC), Bilbao, Spain; Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), Bilbao, Spain.
3 Research Unit, Osakidetza Basque Health Service, Galdakao-Usansolo University Hospital, Galdakao, Spain; Kronikgune Institute for Health Services Research, Barakaldo, Spain; Health Service Research Network on Chronic Diseases (REDISSEC), Bilbao, Spain; Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), Bilbao, Spain.
4 Research and Innovation Unit, Osakidetza Basque Health Service, Basurto University Hospital, Bilbao, Spain; Kronikgune Institute for Health Services Research, Barakaldo, Spain.
5 Osakidetza Basque Health Service, Sub-Directorate for Primary Care Coordination, Vitoria-Gasteiz, Spain; Biocruces Bizkaia Health Research Institute, Barakaldo, Spain; Health Service Research Network on Chronic Diseases (REDISSEC), Bilbao, Spain; Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), Bilbao, Spain.
6 Respiratory Service, Osakidetza Basque Health Service, Galdakao-Usansolo University Hospital, Galdakao, Spain; Biocruces Bizkaia Health Research Institute, Barakaldo, Spain.
7 Kronikgune Institute for Health Services Research, Barakaldo, Spain; Health Service Research Network on Chronic Diseases (REDISSEC), Bilbao, Spain; Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), Bilbao, Spain; Research Unit, Osakidetza Basque Health Service, Galdakao-Usansolo University Hospital, Galdakao, Spain.