Article metrics

Download PDFPDF

Research, ethics and conflicts of interest.
Free

 

Online download statistics by month:

Online download statistics by month: March 2001 to December 2022

AbstractFullPdf
Mar 2001400
Apr 2001600
May 2001800
Jun 2001500
Jul 2001100
Aug 2001300
Sep 2001100
Oct 2001400
Nov 2001100
Dec 2001300
Jan 2002400
Feb 2002500
Mar 2002900
Apr 2002200
May 20021200
Jun 2002400
Jul 2002200
Aug 2002600
Oct 2002200
Nov 2002500
Dec 2002200
Jan 2003500
Feb 2003200
Mar 2003500
Apr 2003100
May 2003400
Jun 2003200
Jul 2003900
Aug 2003500
Sep 2003500
Oct 2003500
Nov 20031300
Dec 2003400
Jan 2004300
Feb 2004400
Mar 2004800
Apr 2004600
May 2004500
Jun 2004400
Jul 2004800
Aug 20041600
Sep 2004800
Oct 20041200
Nov 2004700
Dec 2004600
Jan 2005620
Feb 20051500
Mar 20051300
Apr 2005720
May 20051110
Jun 2005400
Jul 2005400
Aug 2005800
Sep 2005300
Oct 2005500
Nov 2005700
Dec 2005600
Jan 2006400
Feb 2006400
Mar 2006400
Apr 2006500
May 2006500
Jun 2006200
Jul 2006100
Aug 2006800
Sep 2006300
Oct 2006500
Nov 2006500
Dec 2006500
Jan 2007600
Feb 2007700
Mar 2007500
Apr 2007700
May 2007700
Jun 2007300
Aug 2007300
Sep 2007400
Oct 2007500
Nov 2007900
Dec 2007300
Jan 2008400
Feb 2008400
Mar 2008900
Apr 2008400
May 2008300
Jun 2008400
Jul 2008300
Aug 20081400
Sep 20081300
Oct 2008300
Nov 20081005
Dec 2008602
Jan 2009702
Feb 2009306
Mar 20091604
Apr 20091604
May 2009308
Jun 2009301
Jul 20091003
Aug 2009801
Sep 2009702
Oct 2009301
Nov 20091003
Dec 2009805
Jan 20101106
Feb 20101406
Mar 20101304
Apr 20101204
May 20101504
Jun 2010803
Jul 20101106
Aug 2010901
Sep 2010903
Oct 20101504
Nov 20102106
Dec 20101401
Jan 20111504
Feb 20111407
Mar 20112005
Apr 20111702
May 201114312
Jun 2011902
Jul 20111202
Aug 20111501
Sep 20111404
Oct 20111523
Nov 20111503
Dec 2011505
Jan 20121106
Feb 201210217
Mar 201220011
Apr 201218015
May 20121206
Jun 20121206
Jul 201215012
Aug 20121107
Sep 201215013
Oct 201232012
Nov 20122407
Dec 201221011
Jan 201335012
Feb 201315010
Mar 201337013
Apr 201338017
May 201337018
Jun 201314012
Jul 20131507
Aug 201317018
Sep 201311012
Oct 20132709
Nov 20131908
Dec 201324031
Jan 201416014
Feb 20148114
Mar 201437014
Apr 201423022
May 201420021
Jun 201411016
Jul 201423021
Aug 201427022
Sep 201418014
Oct 201420016
Nov 201412011
Dec 201412048
Jan 2015407
Feb 20158320
Mar 201522018
Apr 20151306
May 20159013
Jun 20151609
Jul 201511517
Aug 201516020
Sep 2015909
Oct 2015808
Nov 201522015
Dec 20158010
Jan 2016806
Feb 201622012
Mar 20161608
Apr 201612011
May 201620017
Jun 2016504
Jul 2016603
Aug 2016501
Sep 20161104
Oct 2016905
Nov 2016805
Dec 2016805
Jan 201713110
Feb 2017706
Mar 20171102
Apr 20171002
May 20171704
Jun 2017402
Jul 2017602
Aug 2017603
Sep 20173001
Oct 201736028
Nov 201746025
Dec 20172605
Jan 20182604
Feb 20182002
Mar 20182607
Apr 20181200
May 20188015
Jun 2018403
Jul 201810014
Aug 20181403
Sep 20181806
Oct 20181605
Nov 20181006
Dec 20181002
Jan 20191502
Feb 20191009
Mar 20191408
Apr 20191205
May 2019804
Jun 2019603
Jul 201916010
Aug 20192005
Sep 2019803
Oct 201914012
Nov 201912011
Dec 20191608
Jan 2020405
Feb 202030011
Mar 20202008
Apr 202021015
May 202023015
Jun 20204011
Jul 20201604
Aug 2020809
Sep 202022012
Oct 20201409
Nov 202048012
Dec 202038012
Jan 20212507
Feb 20212004
Mar 20212208
Apr 20212008
May 20211307
Jun 2021006
Jul 20210026
Aug 20210010
Sep 20210010
Oct 202138025
Nov 202136022
Dec 20213607
Jan 202248014
Feb 202232013
Mar 202242013
Apr 20223607
May 202240018
Jun 202218010
Jul 202236011
Aug 202266012
Sep 202264011
Oct 202254012
Nov 202236019
Dec 202278010
Total3461221551

Other content recommended for you