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Research

Exposure to secondhand smoke and cognitive impairment in non-smokers: national cross sectional study with cotinine measurement

BMJ 2009; 338 doi: https://doi.org/10.1136/bmj.b462 (Published 12 February 2009) Cite this as: BMJ 2009;338:b462

Article usage

Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.

Usage statistics: February 2009 to July 2020

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AbstractFullPdf
Feb 2009240718061268
Mar 200912401021804
Apr 2009405347232
May 2009252188117
Jun 200912713574
Jul 200911712657
Aug 200912010144
Sep 200911712258
Oct 200914616656
Nov 200917915153
Dec 200920713645
Jan 201012214345
Feb 20109115730
Mar 201012818944
Apr 201010113435
May 2010529234
Jun 2010778542
Jul 2010537446
Aug 2010487642
Sep 2010388441
Oct 2010538944
Nov 20108610253
Dec 2010916724
Jan 2011787231
Feb 2011765441
Mar 20111076941
Apr 2011653429
May 2011512540
Jun 2011533539
Jul 2011633556
Aug 2011605042
Sep 2011562429
Oct 2011525762
Nov 2011236928
Dec 201109911
Jan 201209211
Feb 201209514
Mar 201208811
Apr 201207619
May 2012643468
Jun 2012354398
Jul 2012184688
Aug 2012323231
Sep 2012116415
Oct 201207917
Nov 20120847
Dec 20120518
Jan 20130562
Feb 20130819
Mar 201301002
Apr 201351176
May 2013316119
Jun 2013610411
Jul 201349411
Aug 20138938
Sep 201341708
Oct 20131817515
Nov 20131817113
Dec 20136023511
Jan 2014121343
Feb 201401664
Mar 2014316811
Apr 2014018215
May 201441677
Jun 20141937
Jul 201401019
Aug 2014021512
Sep 2014043213
Oct 20141746
Nov 2014413615
Dec 2014159315
Jan 2015185318
Feb 201537933
Mar 2015711565
Apr 20151111627
May 20151912122
Jun 2015146712
Jul 2015178016
Aug 201510756
Sep 2015127621
Oct 2015251045
Nov 20153210510
Dec 201530855
Jan 2016489113
Feb 20162912211
Mar 2016176812
Apr 2016181009
May 20163413117
Jun 2016157718
Jul 2016206817
Aug 201645893
Sep 20164411717
Oct 2016548214
Nov 2016435518
Dec 2016386216
Jan 201747914
Feb 2017014415
Mar 2017115819
Apr 2017012111
May 2017012053
Jun 201708934
Jul 201708934
Aug 201709430
Sep 201706531
Oct 201707030
Nov 201706735
Dec 201707933
Jan 201807830
Feb 201818415
Mar 201807116
Apr 201818310
May 2018148316
Jun 201857220
Jul 201856444
Aug 2018194743
Sep 201866151
Oct 201827532
Nov 2018187633
Dec 201898125
Jan 2019106125
Feb 2019264020
Mar 2019178530
Apr 2019128124
May 2019166915
Jun 201912616
Jul 201965331
Aug 2019816618
Sep 2019204714
Oct 201985629
Nov 2019126320
Dec 201944115
Jan 2020134315
Feb 2020135719
Mar 202043318
Apr 202063214
May 2020148415
Jun 20208219
Jul 2020383
Total8199157825775