Article metrics

Download PDFPDF

Airways obstruction, coal mining, and disability.
Free

 

Online download statistics by month:

Online download statistics by month: September 2000 to September 2021

AbstractFullPdf
Sep 2000200
Oct 2000700
Nov 2000100
Jan 2001200
Feb 2001100
Mar 2001200
Apr 2001200
May 2001200
Jun 2001100
Aug 2001200
Sep 2001100
Oct 2001100
Dec 2001100
Mar 2002200
Apr 2002100
Jun 2002100
Jul 2002400
Oct 2002100
Nov 2002300
Dec 2002100
Jan 2003300
Mar 2003200
Apr 2003100
Jul 2003200
Aug 2003800
Sep 2003500
Oct 20031200
Nov 2003600
Dec 2003500
Jan 2004300
Feb 2004100
Mar 2004400
Apr 2004700
May 2004700
Jun 2004700
Jul 2004500
Aug 2004400
Sep 2004400
Oct 2004200
Nov 2004600
Dec 2004300
Jan 2005300
Feb 2005400
Mar 2005700
May 2005300
Jun 2005400
Jul 2005400
Aug 2005400
Oct 2005700
Nov 2005500
Dec 2005200
Jan 2006300
Feb 20061000
Mar 2006500
Apr 2006300
Jun 2006300
Jul 2006200
Aug 2006100
Sep 2006100
Oct 2006700
Nov 2006300
Dec 2006200
Jan 2007100
Feb 2007200
Mar 2007700
Apr 2007300
Jun 2007500
Jul 2007200
Aug 2007200
Sep 2007800
Oct 2007100
Dec 2007100
Jan 2008100
Feb 2008300
Mar 2008300
Apr 2008300
May 2008200
Jun 2008300
Jul 2008100
Sep 2008300
Oct 2008100
Jan 2009201
Feb 2009707
Mar 2009802
Apr 2009101
May 2009201
Jun 2009200
Jul 2009802
Aug 2009301
Sep 2009302
Oct 2009606
Nov 2009803
Dec 2009600
Jan 2010502
Feb 2010400
Mar 2010904
Apr 2010601
May 20101002
Jun 2010303
Jul 2010400
Aug 2010002
Sep 2010400
Oct 2010100
Nov 2010201
Dec 2010301
Jan 2011501
Feb 2011300
Mar 2011205
May 2011001
Jun 2011303
Jul 2011600
Aug 2011800
Sep 2011512
Oct 2011601
Nov 20111002
Dec 2011200
Jan 2012514
Feb 2012501
Mar 2012307
Apr 2012806
May 20126012
Jun 2012306
Jul 20122011
Aug 2012504
Sep 201213013
Oct 201210021
Nov 20125038
Dec 20129028
Jan 20131409
Feb 2013906
Mar 20136011
Apr 20135014
May 201316035
Jun 2013304
Jul 2013503
Aug 2013601
Sep 2013402
Oct 2013103
Nov 2013702
Dec 20131602
Jan 2014001
Mar 20141102
Apr 2014501
May 2014501
Jun 2014405
Jul 20141308
Aug 2014208
Sep 2014202
Oct 2014001
Nov 2014201
Dec 20141002
Jan 2015104
Feb 2015207
Mar 201510021
Apr 20151109
May 2015101
Jun 2015202
Jul 2015404
Aug 2015302
Sep 2015500
Oct 2015301
Nov 2015200
Dec 2015904
Jan 2016201
Feb 2016604
Mar 20161109
Apr 2016304
May 2016204
Jun 2016501
Jul 2016101
Aug 2016502
Sep 2016503
Oct 2016602
Nov 2016906
Dec 2016402
Jan 20171305
Feb 2017500
Mar 20171002
Apr 20171101
May 2017400
Jun 2017404
Jul 2017600
Aug 20171202
Sep 20171802
Oct 2017603
Nov 20171604
Dec 20173003
Jan 20182000
Feb 20181601
Mar 20182205
Apr 20183001
May 2018800
Jun 2018401
Jul 20185706
Aug 2018602
Sep 20181605
Oct 2018805
Nov 2018602
Dec 2018400
Jan 20191001
Feb 20192004
Mar 20191204
Apr 20191206
May 20191002
Jun 20191003
Jul 2019803
Aug 20191004
Sep 2019605
Oct 20191002
Nov 201912011
Dec 20191007
Jan 20201003
Feb 20201402
Mar 2020803
Apr 2020404
May 2020602
Jun 2020203
Jul 20201401
Aug 2020604
Sep 20201600
Oct 20201404
Nov 2020805
Dec 2020803
Jan 20211005
Feb 2021201
Mar 2021604
Apr 2021401
May 20211202
Jun 2021001
Jul 2021005
Aug 2021004
Sep 2021002
Total13652591