Consistency and reliability of smoking-related variables: longitudinal study design in asthma and COPD

Eveliina HirvonenDepartment of Pulmonary Diseases and Clinical Allergology, Turku University Hospital, Turku, Finland;Department of Pulmonary Diseases, University of Turku, Turku, FinlandCorrespondence[email protected]

https://orcid.org/0000-0002-4921-3387 View further author information

Mikhail StepanovCentre for Clinical Informatics, Turku University Hospital, Turku, FinlandView further author information

Maritta KilpeläinenDepartment of Pulmonary Diseases and Clinical Allergology, Turku University Hospital, Turku, FinlandView further author information

Ari LindqvistClinical Research Unit for Pulmonary Diseases, Helsinki University and Helsinki University Hospital, Helsinki, FinlandView further author information

Tarja LaitinenDepartment of Pulmonary Diseases and Clinical Allergology, Turku University Hospital, Turku, Finland;Department of Pulmonary Diseases, University of Turku, Turku, FinlandView further author information

Consistency and reliability of smoking-related variables: longitudinal study design in asthma and COPD

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Consistency and reliability of smoking-related variables: longitudinal study design in asthma and COPD

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