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Volume 63, Issue 9
What evidence could validate the definition of COPD?
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What evidence could validate the definition of COPD?
Online download statistics by month:
Online download statistics by month: August 2008 to April 2025
Abstract
Full
Pdf
Aug 2008
110
54
95
Sep 2008
143
124
169
Oct 2008
107
46
47
Nov 2008
79
31
29
Dec 2008
38
15
18
Jan 2009
34
17
19
Feb 2009
44
22
21
Mar 2009
70
19
20
Apr 2009
28
13
10
May 2009
20
12
12
Jun 2009
29
7
3
Jul 2009
22
6
2
Aug 2009
23
17
9
Sep 2009
19
10
9
Oct 2009
23
10
13
Nov 2009
21
7
3
Dec 2009
17
2
4
Jan 2010
14
5
10
Feb 2010
15
2
8
Mar 2010
18
16
10
Apr 2010
17
5
8
May 2010
21
4
8
Jun 2010
22
4
3
Jul 2010
19
6
10
Aug 2010
18
6
3
Sep 2010
7
5
3
Oct 2010
21
15
11
Nov 2010
25
3
9
Dec 2010
16
5
1
Jan 2011
19
20
11
Feb 2011
24
3
2
Mar 2011
23
9
10
Apr 2011
23
7
1
May 2011
22
3
5
Jun 2011
17
1
6
Jul 2011
21
3
3
Aug 2011
25
1
1
Sep 2011
28
1
3
Oct 2011
26
2
2
Nov 2011
32
2
5
Dec 2011
29
1
1
Jan 2012
21
1
1
Feb 2012
21
5
1
Mar 2012
27
3
2
Apr 2012
19
2
2
May 2012
17
1
2
Jun 2012
15
0
3
Jul 2012
12
0
1
Aug 2012
24
2
2
Sep 2012
23
0
2
Oct 2012
26
2
2
Nov 2012
0
0
3
Dec 2012
0
6
4
Jan 2013
0
9
15
Feb 2013
0
12
18
Mar 2013
0
13
16
Apr 2013
0
12
17
May 2013
0
9
21
Jun 2013
17
5
10
Jul 2013
11
6
7
Aug 2013
8
7
11
Sep 2013
8
1
17
Oct 2013
4
6
6
Nov 2013
17
15
10
Dec 2013
9
3
3
Jan 2014
3
7
5
Feb 2014
10
2
3
Mar 2014
14
11
13
Apr 2014
10
9
6
May 2014
15
16
19
Jun 2014
5
14
8
Jul 2014
8
8
6
Aug 2014
4
9
4
Sep 2014
13
28
6
Oct 2014
6
6
6
Nov 2014
5
6
3
Dec 2014
7
3
5
Jan 2015
0
1
3
Feb 2015
4
2
3
Mar 2015
14
26
6
Apr 2015
13
6
4
May 2015
20
15
3
Jun 2015
7
8
2
Jul 2015
25
12
1
Aug 2015
5
9
7
Sep 2015
19
18
2
Oct 2015
8
5
2
Nov 2015
8
10
3
Dec 2015
9
5
2
Jan 2016
45
9
12
Feb 2016
8
5
4
Mar 2016
9
4
9
Apr 2016
8
10
8
May 2016
5
9
4
Jun 2016
6
4
2
Jul 2016
12
7
1
Aug 2016
21
6
2
Sep 2016
6
3
2
Oct 2016
9
6
2
Nov 2016
14
6
2
Dec 2016
9
9
1
Jan 2017
18
3
5
Feb 2017
6
2
5
Mar 2017
18
7
3
Apr 2017
5
11
1
May 2017
1
27
6
Jun 2017
11
18
5
Jul 2017
21
21
6
Aug 2017
21
18
5
Sep 2017
38
28
2
Oct 2017
28
22
1
Nov 2017
32
26
1
Dec 2017
9
9
1
Jan 2018
9
7
0
Feb 2018
31
27
1
Mar 2018
38
22
3
Apr 2018
31
15
3
May 2018
27
17
4
Jun 2018
33
25
8
Jul 2018
17
15
2
Aug 2018
22
20
2
Sep 2018
25
19
4
Oct 2018
20
16
4
Nov 2018
26
26
6
Dec 2018
35
31
2
Jan 2019
57
53
1
Feb 2019
25
26
0
Mar 2019
33
31
11
Apr 2019
31
25
8
May 2019
18
16
4
Jun 2019
32
30
7
Jul 2019
13
11
8
Aug 2019
15
11
2
Sep 2019
22
16
5
Oct 2019
26
24
17
Nov 2019
30
22
6
Dec 2019
14
14
5
Jan 2020
14
14
4
Feb 2020
19
17
3
Mar 2020
15
13
4
Apr 2020
7
5
5
May 2020
19
11
8
Jun 2020
14
4
3
Jul 2020
15
12
4
Aug 2020
8
6
7
Sep 2020
13
13
1
Oct 2020
13
11
6
Nov 2020
10
9
4
Dec 2020
20
13
5
Jan 2021
21
16
4
Feb 2021
13
11
4
Mar 2021
9
9
4
Apr 2021
15
13
2
May 2021
9
9
7
Jun 2021
23
23
5
Jul 2021
6
6
3
Aug 2021
7
7
7
Sep 2021
15
15
11
Oct 2021
19
15
14
Nov 2021
20
15
22
Dec 2021
13
13
4
Jan 2022
29
26
7
Feb 2022
22
22
5
Mar 2022
7
7
28
Apr 2022
13
15
21
May 2022
21
21
16
Jun 2022
30
29
6
Jul 2022
18
16
3
Aug 2022
29
25
6
Sep 2022
38
30
11
Oct 2022
45
45
9
Nov 2022
27
13
6
Dec 2022
13
10
2
Jan 2023
6
5
3
Feb 2023
52
44
3
Mar 2023
17
13
3
Apr 2023
2
2
4
May 2023
11
9
11
Jun 2023
10
6
4
Jul 2023
12
10
8
Aug 2023
18
15
6
Sep 2023
13
11
1
Oct 2023
13
5
3
Nov 2023
13
7
4
Dec 2023
24
23
6
Jan 2024
42
42
2
Feb 2024
36
17
3
Mar 2024
6
6
88
Apr 2024
5
5
18
May 2024
15
7
0
Jun 2024
46
3
1
Jul 2024
55
0
0
Aug 2024
50
0
0
Sep 2024
28
0
2
Oct 2024
33
0
0
Nov 2024
51
1
1
Dec 2024
41
2
0
Jan 2025
54
0
0
Feb 2025
8
0
0
Mar 2025
5
0
0
Apr 2025
1
1
0
Total
4126
2459
1550
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