Article Information
vol. 40 no. Suppl 56
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History
- Published online July 25, 2014.
Copyright & Usage
© 2012 ERS
Author Information
- 1Pulmonology, Hospital Centre of Trás-os-Montes e Alto Douro, Vila Real, Portugal
- 2Public Health, North Regional Health Administration, Porto, Portugal
- 3Occupational Health, Hospital Center of Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
- 4Pulmonology Diagnosis, Pulmonology Diagnosis Center of Vila Nova de Gaia, Vila Nova de Gaia, Portugal
- 5Clinical Epidemiology, Predictive Medicine and Public Health, University of Porto Medical School, Porto, Portugal
- 6Pulmonology, Hospital Center of Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal