No abstract available
MeSH terms
-
Adult
-
Aged
-
Air Pollutants / adverse effects
-
Bronchodilator Agents / therapeutic use
-
China / epidemiology
-
Combined Modality Therapy
-
Disease Management*
-
Female
-
Humans
-
Incidence
-
Male
-
Middle Aged
-
Primary Prevention / methods*
-
Pulmonary Disease, Chronic Obstructive / epidemiology
-
Pulmonary Disease, Chronic Obstructive / prevention & control*
-
Pulmonary Disease, Chronic Obstructive / therapy*
-
Respiratory Therapy / methods
-
Risk Assessment
-
Severity of Illness Index
-
Smoking / adverse effects
Substances
-
Air Pollutants
-
Bronchodilator Agents