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Volume 63, Issue 9
Proportional classifications of COPD phenotypes
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This article has a correction. Please see:
Correction - September 01, 2015
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Chronic obstructive pulmonary disease
Proportional classifications of COPD phenotypes
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Aug 2008
178
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111
Sep 2008
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171
289
Oct 2008
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102
Nov 2008
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Dec 2008
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Jan 2009
49
32
48
Feb 2009
41
27
27
Mar 2009
54
43
52
Apr 2009
46
31
29
May 2009
44
36
24
Jun 2009
29
37
32
Jul 2009
26
23
31
Aug 2009
49
31
32
Sep 2009
43
35
44
Oct 2009
45
34
53
Nov 2009
46
23
29
Dec 2009
33
15
30
Jan 2010
55
14
22
Feb 2010
34
32
28
Mar 2010
81
37
49
Apr 2010
48
23
34
May 2010
36
22
19
Jun 2010
34
9
18
Jul 2010
41
18
24
Aug 2010
72
23
21
Sep 2010
69
25
29
Oct 2010
95
31
33
Nov 2010
88
57
38
Dec 2010
52
24
14
Jan 2011
102
37
32
Feb 2011
102
30
24
Mar 2011
107
29
39
Apr 2011
90
41
28
May 2011
79
29
32
Jun 2011
68
17
24
Jul 2011
79
39
24
Aug 2011
66
15
23
Sep 2011
75
21
26
Oct 2011
130
20
18
Nov 2011
151
52
29
Dec 2011
102
30
14
Jan 2012
117
18
26
Feb 2012
87
16
9
Mar 2012
164
17
20
Apr 2012
128
15
15
May 2012
139
15
17
Jun 2012
83
12
15
Jul 2012
96
11
13
Aug 2012
69
14
23
Sep 2012
80
5
15
Oct 2012
97
7
14
Nov 2012
87
11
23
Dec 2012
87
27
29
Jan 2013
62
43
30
Feb 2013
73
38
34
Mar 2013
72
51
37
Apr 2013
70
39
36
May 2013
64
70
33
Jun 2013
51
28
27
Jul 2013
70
34
20
Aug 2013
41
37
41
Sep 2013
56
39
55
Oct 2013
76
40
51
Nov 2013
76
45
42
Dec 2013
61
19
29
Jan 2014
38
20
31
Feb 2014
42
24
36
Mar 2014
51
36
42
Apr 2014
36
81
34
May 2014
64
64
44
Jun 2014
56
43
26
Jul 2014
70
52
51
Aug 2014
56
44
35
Sep 2014
54
40
47
Oct 2014
36
41
45
Nov 2014
57
47
46
Dec 2014
52
26
28
Jan 2015
38
37
22
Feb 2015
34
31
35
Mar 2015
75
70
61
Apr 2015
46
50
34
May 2015
58
87
30
Jun 2015
38
24
21
Jul 2015
46
42
45
Aug 2015
58
41
46
Sep 2015
73
41
22
Oct 2015
27
18
52
Nov 2015
58
37
49
Dec 2015
83
21
39
Jan 2016
43
49
30
Feb 2016
48
25
18
Mar 2016
33
29
42
Apr 2016
46
37
29
May 2016
58
41
31
Jun 2016
57
36
29
Jul 2016
59
34
34
Aug 2016
57
37
29
Sep 2016
157
29
25
Oct 2016
50
39
40
Nov 2016
34
31
25
Dec 2016
24
22
5
Jan 2017
38
28
17
Feb 2017
22
13
19
Mar 2017
16
44
17
Apr 2017
15
37
9
May 2017
12
69
15
Jun 2017
24
47
21
Jul 2017
52
43
18
Aug 2017
65
42
21
Sep 2017
78
63
33
Oct 2017
124
94
60
Nov 2017
102
56
21
Dec 2017
63
43
9
Jan 2018
61
37
14
Feb 2018
67
47
13
Mar 2018
110
72
16
Apr 2018
105
75
19
May 2018
48
40
29
Jun 2018
49
41
26
Jul 2018
38
30
6
Aug 2018
52
36
18
Sep 2018
63
49
19
Oct 2018
114
97
27
Nov 2018
139
119
20
Dec 2018
77
73
7
Jan 2019
91
78
11
Feb 2019
127
106
24
Mar 2019
85
68
28
Apr 2019
64
39
67
May 2019
68
48
38
Jun 2019
36
26
29
Jul 2019
74
47
31
Aug 2019
60
43
21
Sep 2019
79
56
27
Oct 2019
89
68
79
Nov 2019
102
70
47
Dec 2019
69
51
19
Jan 2020
74
64
23
Feb 2020
69
59
13
Mar 2020
57
49
8
Apr 2020
104
83
14
May 2020
53
47
17
Jun 2020
80
70
22
Jul 2020
100
84
13
Aug 2020
121
113
13
Sep 2020
155
109
42
Oct 2020
107
77
27
Nov 2020
80
48
16
Dec 2020
64
46
19
Jan 2021
73
58
32
Feb 2021
72
50
17
Mar 2021
87
64
36
Apr 2021
74
48
27
May 2021
80
70
27
Jun 2021
82
83
26
Jul 2021
42
42
27
Aug 2021
45
46
20
Sep 2021
95
96
95
Oct 2021
101
81
66
Nov 2021
52
46
46
Dec 2021
83
85
25
Jan 2022
120
108
35
Feb 2022
70
65
12
Mar 2022
103
74
25
Apr 2022
102
82
36
Total
11724
7466
5280
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