Intended for healthcare professionals

Editor's Choice

Expect the unexpected

BMJ 2009; 339 doi: https://doi.org/10.1136/bmj.b3571 (Published 02 September 2009) Cite this as: BMJ 2009;339:b3571

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 March 2024

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AbstractFullPdf
Jan 2018030
Feb 20181180
Mar 2018060
Apr 2018030
May 20180100
Jun 20181130
Jul 2018040
Aug 2018050
Sep 2018030
Oct 2018050
Nov 2018080
Dec 2018040
Jan 2019040
Feb 2019040
Mar 2019040
Apr 2019370
May 2019260
Jun 2019050
Jul 2019060
Aug 2019040
Oct 2019040
Nov 2019170
Dec 2019010
Jan 2020030
Feb 2020010
Mar 2020160
May 2020120
Jun 2020010
Jul 2020060
Aug 2020040
Sep 20202170
Oct 20200160
Nov 20200210
Dec 20200150
Jan 2021190
Feb 2021030
Mar 2021050
Apr 2021060
May 2021050
Jun 2021010
Jul 2021060
Aug 2021170
Sep 2021030
Oct 20211100
Nov 20210110
Dec 20210120
Jan 2022070
Feb 2022030
Mar 2022050
Apr 2022050
May 20221120
Jun 2022010
Jul 2022040
Aug 2022270
Sep 2022020
Oct 20221140
Nov 2022040
Dec 20220110
Jan 2023120
Feb 2023050
Mar 2023020
Apr 2023060
May 2023260
Jun 2023120
Jul 2023220
Aug 2023010
Sep 20230100
Oct 2023290
Nov 2023070
Dec 20231200
Jan 2024080
Feb 20244280
Mar 20244170
Total365040