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Volume 86, Issue 8
Five years of surveillance
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Commentary
Five years of surveillance
Online download statistics by month:
Online download statistics by month: July 2002 to March 2024
Abstract
Full
Pdf
Jul 2002
0
27
10
Aug 2002
0
46
10
Sep 2002
0
15
6
Oct 2002
0
10
11
Nov 2002
0
3
0
Dec 2002
0
3
0
Jan 2003
0
9
1
Feb 2003
0
1
0
Mar 2003
0
5
0
Apr 2003
0
2
2
May 2003
0
2
0
Jun 2003
0
2
0
Jul 2003
0
17
1
Aug 2003
0
16
2
Sep 2003
0
13
0
Oct 2003
0
14
0
Nov 2003
0
16
1
Dec 2003
0
2
1
Jan 2004
0
15
1
Feb 2004
0
12
2
Mar 2004
0
12
3
Apr 2004
1
15
2
May 2004
0
38
0
Jun 2004
0
43
3
Jul 2004
0
42
0
Aug 2004
0
80
3
Sep 2004
0
69
2
Oct 2004
9
10
0
Nov 2004
9
11
7
Dec 2004
7
13
5
Jan 2005
4
8
5
Feb 2005
5
9
3
Mar 2005
6
11
2
Apr 2005
4
2
3
May 2005
3
6
0
Jun 2005
7
12
2
Jul 2005
3
6
3
Aug 2005
5
6
3
Sep 2005
3
2
1
Oct 2005
4
6
0
Nov 2005
4
16
7
Dec 2005
6
5
1
Jan 2006
4
14
2
Feb 2006
1
7
2
Mar 2006
2
5
1
Apr 2006
2
2
0
May 2006
2
3
3
Jun 2006
0
2
0
Jul 2006
1
0
0
Aug 2006
1
1
1
Sep 2006
2
2
2
Oct 2006
5
4
4
Nov 2006
2
3
1
Dec 2006
0
0
2
Jan 2007
0
3
2
Feb 2007
2
5
0
Mar 2007
0
2
0
Apr 2007
3
2
2
May 2007
4
1
2
Jun 2007
4
0
0
Jul 2007
1
1
1
Aug 2007
2
1
1
Sep 2007
3
3
4
Oct 2007
5
3
3
Nov 2007
8
0
3
Dec 2007
3
3
0
Jan 2008
3
7
3
Feb 2008
2
2
1
Mar 2008
2
3
0
Apr 2008
3
6
1
May 2008
3
3
0
Jun 2008
2
1
0
Jul 2008
2
0
0
Aug 2008
1
5
0
Sep 2008
2
1
0
Oct 2008
1
1
1
Nov 2008
2
0
0
Dec 2008
2
2
1
Jan 2009
8
2
0
Mar 2009
1
0
0
Apr 2009
3
1
0
May 2009
1
0
0
Jun 2009
1
0
0
Jul 2009
3
2
0
Aug 2009
5
2
2
Oct 2009
3
1
0
Nov 2009
1
0
0
Dec 2009
3
0
0
Jan 2010
2
2
1
Feb 2010
8
1
4
Mar 2010
2
0
0
Apr 2010
2
1
2
May 2010
0
0
1
Jun 2010
2
0
0
Jul 2010
2
2
5
Aug 2010
0
2
0
Sep 2010
9
4
1
Oct 2010
4
4
0
Nov 2010
6
1
1
Dec 2010
5
8
0
Jan 2011
3
2
1
Feb 2011
3
4
1
Mar 2011
2
11
0
Apr 2011
3
26
0
May 2011
8
10
2
Jun 2011
4
0
0
Jul 2011
6
1
0
Aug 2011
2
1
1
Sep 2011
3
0
1
Oct 2011
2
2
2
Nov 2011
4
2
1
Dec 2011
3
6
4
Jan 2012
4
5
3
Feb 2012
2
3
5
Mar 2012
3
3
1
Apr 2012
4
6
4
May 2012
1
8
2
Jun 2012
6
7
2
Jul 2012
5
6
6
Aug 2012
7
7
6
Sep 2012
8
7
6
Oct 2012
7
40
2
Nov 2012
0
28
1
Dec 2012
0
3
1
Jan 2013
0
25
0
Feb 2013
0
8
5
Mar 2013
0
6
3
Apr 2013
0
10
5
May 2013
0
12
5
Jun 2013
0
3
2
Jul 2013
0
21
0
Aug 2013
2
7
0
Sep 2013
0
7
0
Oct 2013
1
24
0
Nov 2013
0
20
1
Dec 2013
1
14
2
Jan 2014
0
19
0
Feb 2014
2
10
12
Mar 2014
5
14
2
Apr 2014
4
10
0
May 2014
3
8
0
Jun 2014
0
5
2
Jul 2014
4
6
1
Aug 2014
0
1
3
Sep 2014
0
8
1
Oct 2014
0
10
2
Nov 2014
1
0
1
Dec 2014
0
3
1
Jan 2015
1
2
2
Feb 2015
1
3
4
Mar 2015
6
3
1
Apr 2015
1
20
0
May 2015
3
3
1
Jun 2015
1
8
0
Jul 2015
5
7
2
Aug 2015
1
0
3
Sep 2015
4
3
2
Oct 2015
2
3
1
Nov 2015
4
4
0
Dec 2015
0
2
0
Jan 2016
1
2
4
Feb 2016
0
2
2
Mar 2016
3
6
5
Apr 2016
2
4
2
May 2016
0
4
0
Jun 2016
0
1
2
Jul 2016
0
4
0
Aug 2016
2
2
0
Sep 2016
0
2
1
Oct 2016
0
1
1
Nov 2016
1
2
0
Dec 2016
2
0
2
Jan 2017
2
2
0
Mar 2017
1
3
1
Apr 2017
1
5
0
May 2017
0
11
1
Jun 2017
5
12
4
Jul 2017
11
11
1
Aug 2017
10
10
0
Sep 2017
59
59
1
Oct 2017
130
130
1
Nov 2017
43
43
1
Dec 2017
50
50
0
Jan 2018
57
57
0
Feb 2018
54
48
2
Mar 2018
47
45
0
Apr 2018
29
29
0
May 2018
31
28
0
Jun 2018
29
29
0
Jul 2018
42
42
0
Aug 2018
37
35
0
Sep 2018
40
40
0
Oct 2018
28
28
0
Nov 2018
25
25
2
Dec 2018
27
27
0
Jan 2019
23
21
0
Feb 2019
26
22
2
Mar 2019
0
0
4
Apr 2019
1
1
5
May 2019
13
13
3
Jun 2019
26
26
3
Jul 2019
23
23
5
Aug 2019
26
26
2
Sep 2019
22
22
4
Oct 2019
22
22
4
Nov 2019
22
22
4
Dec 2019
30
30
2
Jan 2020
21
21
1
Feb 2020
24
24
3
Mar 2020
24
24
2
Apr 2020
29
29
3
May 2020
33
32
4
Jun 2020
27
27
2
Jul 2020
24
24
1
Aug 2020
16
16
3
Sep 2020
34
33
1
Oct 2020
30
30
4
Nov 2020
1
1
3
Dec 2020
34
25
2
Jan 2021
3
2
3
Feb 2021
0
0
1
Mar 2021
2
2
3
Apr 2021
3
3
0
May 2021
2
2
2
Jun 2021
7
7
2
Jul 2021
4
4
2
Aug 2021
2
2
4
Sep 2021
6
6
4
Oct 2021
8
7
16
Nov 2021
1
1
17
Dec 2021
3
3
1
Jan 2022
10
10
3
Feb 2022
3
3
1
Mar 2022
13
13
4
Apr 2022
6
6
1
May 2022
19
19
15
Jun 2022
16
16
6
Jul 2022
10
10
0
Aug 2022
18
18
5
Sep 2022
17
17
12
Oct 2022
16
15
7
Nov 2022
6
6
1
Dec 2022
4
4
4
Jan 2023
1
1
2
Feb 2023
19
19
0
Mar 2023
7
7
0
Apr 2023
3
1
1
May 2023
2
1
4
Jun 2023
5
4
0
Jul 2023
3
3
4
Aug 2023
1
1
4
Sep 2023
2
2
2
Oct 2023
4
3
4
Nov 2023
7
5
0
Dec 2023
24
4
1
Jan 2024
8
0
0
Mar 2024
58
0
5
Total
1998
2820
520
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