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Volume 87, Issue 6
Inter-unit comparisons are flawed
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LETTER
Inter-unit comparisons are flawed
Online download statistics by month:
Online download statistics by month: November 2002 to March 2024
Abstract
Full
Pdf
Nov 2002
0
55
0
Dec 2002
0
68
17
Jan 2003
0
38
10
Feb 2003
0
7
0
Mar 2003
0
11
5
Apr 2003
0
10
6
May 2003
0
4
0
Jun 2003
0
7
3
Jul 2003
0
9
0
Aug 2003
0
5
0
Sep 2003
0
8
1
Oct 2003
0
8
2
Nov 2003
0
4
0
Dec 2003
0
12
5
Jan 2004
0
10
0
Feb 2004
0
5
0
Mar 2004
0
6
0
Apr 2004
0
7
2
May 2004
0
34
1
Jun 2004
0
41
6
Jul 2004
0
40
2
Aug 2004
0
75
0
Sep 2004
0
45
0
Oct 2004
9
13
0
Nov 2004
9
5
0
Dec 2004
8
9
2
Jan 2005
5
6
1
Feb 2005
6
7
3
Mar 2005
9
9
2
Apr 2005
2
4
1
May 2005
0
5
2
Jun 2005
3
7
2
Jul 2005
1
2
0
Aug 2005
4
7
3
Sep 2005
2
0
1
Oct 2005
2
3
1
Nov 2005
5
6
1
Dec 2005
7
4
0
Jan 2006
5
7
2
Feb 2006
3
5
3
Mar 2006
0
3
1
Apr 2006
0
3
1
May 2006
1
1
1
Jun 2006
0
1
0
Jul 2006
1
1
0
Oct 2006
0
3
0
Nov 2006
2
2
0
Jan 2007
0
2
0
Apr 2007
2
1
0
May 2007
1
0
0
Jun 2007
1
0
0
Jul 2007
0
1
0
Sep 2007
2
0
1
Oct 2007
1
0
1
Nov 2007
2
0
0
Dec 2007
1
0
0
Jan 2008
1
0
0
Apr 2008
0
1
1
Jun 2008
5
2
0
Jul 2008
0
0
1
Aug 2008
0
1
0
Sep 2008
4
1
1
Oct 2008
3
1
0
Nov 2008
2
2
0
Dec 2008
0
1
0
Jan 2009
1
1
1
Mar 2009
0
1
0
Jun 2009
2
0
0
Jul 2009
2
0
0
Sep 2009
6
2
1
Oct 2009
2
1
0
Nov 2009
1
0
0
Dec 2009
5
0
2
Jan 2010
2
0
0
Feb 2010
2
0
0
Mar 2010
0
1
0
Apr 2010
4
0
0
May 2010
1
0
0
Jul 2010
1
0
1
Sep 2010
0
1
1
Oct 2010
1
0
0
Dec 2010
2
0
0
Jan 2011
4
0
0
Feb 2011
1
0
0
Mar 2011
2
0
0
Apr 2011
3
0
0
May 2011
2
1
0
Jun 2011
4
0
0
Jul 2011
2
0
0
Aug 2011
2
0
0
Sep 2011
2
1
1
Nov 2011
3
0
0
Dec 2011
2
1
2
Jan 2012
4
3
1
Feb 2012
1
2
2
Mar 2012
1
0
0
Apr 2012
3
1
0
May 2012
6
1
2
Jun 2012
4
3
4
Jul 2012
2
2
5
Aug 2012
2
1
5
Sep 2012
1
1
3
Oct 2012
4
7
4
Nov 2012
0
2
5
Dec 2012
0
2
3
Jan 2013
0
4
0
Feb 2013
0
4
1
Mar 2013
0
3
3
May 2013
0
4
3
Jun 2013
1
1
0
Jul 2013
0
1
0
Aug 2013
2
1
0
Sep 2013
0
2
0
Oct 2013
1
2
0
Nov 2013
0
1
0
Dec 2013
2
1
0
Jan 2014
1
1
1
Feb 2014
3
2
0
Mar 2014
4
3
0
Apr 2014
4
4
1
May 2014
4
1
1
Jun 2014
0
1
2
Jul 2014
4
5
0
Aug 2014
3
4
1
Sep 2014
2
1
0
Nov 2014
0
1
0
Dec 2014
5
1
0
Mar 2015
1
2
0
Apr 2015
1
0
0
May 2015
3
0
1
Jun 2015
7
0
1
Jul 2015
1
0
0
Sep 2015
2
0
2
Oct 2015
1
0
0
Dec 2015
3
3
0
Jan 2016
2
2
0
Mar 2016
0
1
0
Apr 2016
0
0
2
May 2016
2
1
1
Jun 2016
4
3
0
Jul 2016
4
0
1
Aug 2016
3
2
0
Sep 2016
3
0
0
Oct 2016
2
1
0
Nov 2016
6
0
0
Dec 2016
4
1
0
Jan 2017
4
0
1
Feb 2017
1
0
1
Mar 2017
0
2
3
Apr 2017
0
5
3
May 2017
0
8
6
Jun 2017
6
18
7
Jul 2017
17
17
6
Aug 2017
8
8
6
Sep 2017
16
16
7
Oct 2017
20
20
8
Nov 2017
12
12
3
Dec 2017
17
17
3
Jan 2018
22
22
4
Feb 2018
19
19
6
Mar 2018
36
34
7
Apr 2018
24
24
8
May 2018
27
28
6
Jun 2018
19
19
7
Jul 2018
18
18
6
Aug 2018
16
16
7
Sep 2018
14
14
6
Oct 2018
6
6
7
Nov 2018
6
6
6
Dec 2018
10
10
8
Jan 2019
10
10
6
Feb 2019
5
5
4
Mar 2019
5
5
9
Apr 2019
3
3
10
May 2019
3
3
9
Jun 2019
6
6
9
Jul 2019
2
2
10
Aug 2019
2
2
11
Sep 2019
0
0
8
Oct 2019
5
5
11
Nov 2019
0
0
7
Dec 2019
3
3
11
Jan 2020
3
3
9
Feb 2020
5
5
11
Mar 2020
0
0
8
Apr 2020
3
3
5
May 2020
6
6
1
Jun 2020
4
4
10
Jul 2020
6
5
5
Aug 2020
3
3
6
Sep 2020
14
14
1
Oct 2020
7
7
3
Nov 2020
6
6
3
Dec 2020
6
5
2
Jan 2021
2
1
3
Feb 2021
0
0
2
Mar 2021
2
2
3
Apr 2021
3
3
0
May 2021
1
1
2
Jun 2021
6
6
2
Jul 2021
4
4
2
Aug 2021
3
3
7
Sep 2021
3
2
1
Oct 2021
1
1
16
Nov 2021
3
3
14
Dec 2021
9
9
0
Jan 2022
7
7
2
Feb 2022
2
2
4
Mar 2022
6
6
1
Apr 2022
7
7
3
May 2022
15
15
16
Jun 2022
16
16
4
Jul 2022
5
5
0
Aug 2022
18
18
4
Sep 2022
13
13
8
Oct 2022
24
24
5
Nov 2022
4
4
5
Dec 2022
2
1
0
Jan 2023
8
8
2
Feb 2023
10
10
0
Mar 2023
0
0
1
Apr 2023
1
1
4
May 2023
2
2
7
Jun 2023
1
1
0
Jul 2023
2
2
4
Aug 2023
1
1
4
Sep 2023
3
3
3
Oct 2023
2
2
2
Nov 2023
6
6
3
Dec 2023
16
0
1
Jan 2024
20
0
1
Feb 2024
11
1
0
Mar 2024
11
0
0
Total
956
1368
593
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