title: The prevalence of comorbidities in COPD patients, and their impact on health status and COPD symptoms in primary care patients: a protocol for an UNLOCK study from the IPCRG.
authors.affiliation: Department of Public Health and Caring Sciences, Family Medicine and Preventive Medicine, Uppsala University, Uppsala, Sweden.
authors.forename: Björn
authors.initials: B
authors.lastname: Ställberg
authors.affiliation: ICVS/3B's-PT Government Associate Laboratory, Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.
authors.forename: Pedro
authors.identifier: 0000-0001-6322-4923
authors.initials: P
authors.lastname: Teixeira
authors.affiliation: Stichting Zorgdraad Foundation, Oosterbeek, The Netherlands.
authors.forename: Coert
authors.initials: C
authors.lastname: Blom
authors.affiliation: Department of Public Health and Caring Sciences, Family Medicine and Preventive Medicine, Uppsala University, Uppsala, Sweden.
authors.forename: Karin
authors.initials: K
authors.lastname: Lisspers
authors.affiliation: Asites Rural Practice, Heraklion, Greece.
authors.forename: Ioanna
authors.initials: I
authors.lastname: Tsiligianni
authors.affiliation: Institute of Applied Health Research, University of Birmingham, Birmingham, UK.
authors.forename: Rachel
authors.initials: R
authors.lastname: Jordan
authors.affiliation: Mallorca Research Institute IdisPa, IBSalut, Palma, Spain.
authors.forename: Miguel
authors.initials: M
authors.lastname: Román
authors.affiliation: Department of Internal Medicine, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands.
authors.forename: Nanne
authors.initials: N
authors.lastname: Kleefstra
authors.affiliation: Department of Family Medecine, Kharkov Medical Academy, Kharkov, Ukraine.
authors.forename: Oleksii
authors.initials: O
authors.lastname: Korzh
authors.affiliation: Academic Primary Care, Division of Applied Health Sciences, University of Aberdeen, Aberdeen, UK.
authors.forename: David
authors.initials: D
authors.lastname: Price
authors.affiliation: Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, The Netherlands.
authors.forename: Niels
authors.identifier: 0000-0002-8607-9199
authors.initials: N
authors.lastname: Chavannes
mesh_terms: D015897:Comorbidity; D006304:Health Status; D006801:Humans; D015995:Prevalence; D011320:Primary Health Care; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications*