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Laboratory controlled trials are different from clinical trials

BMJ 2012; 345 doi: https://doi.org/10.1136/bmj.e5425 (Published 14 August 2012) Cite this as: BMJ 2012;345:e5425

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: January 2018 to May 2025

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AbstractFullPdf
Jan 20181671
Feb 20182451
Mar 20182461
Apr 20182552
May 20183861
Jun 20182310
Jul 20182621
Aug 20182550
Sep 201846153
Oct 20186591
Nov 20185171
Dec 201844221
Jan 20192520
Feb 20195350
Mar 20196470
Apr 20194782
May 20194250
Jun 20191540
Jul 20194120
Aug 20192341
Oct 20196451
Nov 20195550
Dec 20193173
Jan 20206231
Feb 20203940
Mar 20204630
May 202010620
Jun 20206510
Jul 20204300
Aug 20205292
Sep 202081131
Oct 202010552
Nov 20208370
Dec 20207762
Jan 20217041
Feb 20218770
Mar 202110110
Apr 2021109112
May 20217461
Jun 20217323
Jul 20215353
Aug 20213410
Sep 20216140
Oct 20214430
Nov 20215221
Dec 202142130
Jan 20226530
Feb 2022125175
Mar 202262123
Apr 20227980
May 20223081
Jun 202226111
Jul 20225684
Aug 20222681
Sep 202262102
Oct 2022119161
Nov 20224270
Dec 20226630
Jan 20237771
Feb 202392150
Mar 202366100
Apr 20235771
May 202310390
Jun 20234410
Jul 20235140
Aug 20235011
Sep 20237731
Oct 20239030
Nov 20237882
Dec 20239541
Jan 202412750
Feb 202410580
Mar 202467110
Apr 2024220266
May 20245940
Jun 20245711
Jul 20245910
Aug 20243431
Sep 20242720
Oct 20244841
Nov 20247130
Dec 202454151
Jan 20254600
Feb 20252111
Mar 20253801
Apr 20255020
May 20251200
Total515952576
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