No abstract available
Publication types
-
Letter
-
Multicenter Study
-
Observational Study
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Cross-Sectional Studies
-
Europe, Eastern / epidemiology
-
Humans
-
Phenotype
-
Pulmonary Disease, Chronic Obstructive / classification*
-
Pulmonary Disease, Chronic Obstructive / epidemiology*
Associated data
-
ClinicalTrials.gov/NCT02119494