Thema
Journal Article
393
Research Support, Non-U.S. Gov't
116
Research Support, N.I.H., Extramural
112
COPD
92
Multicenter Study
83
Review
78
Randomized Controlled Trial
74
chronic obstructive pulmonary disease
48
Bronchodilator Agents
40
Comparative Study
30
Research Support, U.S. Gov't, P.H.S.
28
Biomarkers
27
Comment
20
Chronic obstructive pulmonary disease
19
emphysema
19
Research Support, U.S. Gov't, Non-P.H.S.
18
Adrenal Cortex Hormones
17
Emphysema
17
Observational Study
17
Letter
15
Oxygen
15
COVID-19
13
Editorial
13
copd
13
Klinische Studie
12
S88TT14065
12
exacerbations
12
Anti-Bacterial Agents
11
Case Reports
11
Adrenergic beta-2 Receptor Agonists
10
Androstadienes
10
Azithromycin
10
Benzyl Alcohols
10
Chlorobenzenes
10
Clinical Trial, Phase III
10
Muscarinic Antagonists
10
spirometry
10
Antibodies, Monoclonal, Humanized
9
Drug Combinations
9
Exacerbation
9
Pneumothorax
9
Quinuclidines
9
028LZY775B
8
570
8
83905-01-5
8
Biology
8
Glucocorticoids
8
chronic bronchitis
8
Chronic bronchitis
7
quality of life
7
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