Intended for healthcare professionals

Education And Debate

The editor's decision is final

BMJ 1997; 315 doi: https://doi.org/10.1136/bmj.315.7122.1609 (Published 13 December 1997) Cite this as: BMJ 1997;315:1609

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 April 2024

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AbstractFullPdf
Jan 2018700
Feb 2018300
Mar 2018510
Apr 2018510
May 2018700
Jun 2018200
Jul 2018610
Aug 2018620
Sep 2018200
Oct 20181000
Nov 2018520
Dec 2018500
Jan 2019300
Feb 2019100
Mar 2019510
Apr 2019600
May 2019910
Jun 2019100
Jul 2019300
Aug 2019610
Oct 2019220
Nov 2019100
Dec 2019250
Jan 2020510
Feb 2020940
Mar 2020300
May 20203040
Jun 2020400
Jul 2020420
Aug 2020520
Sep 20204050
Oct 20201000
Nov 20201940
Dec 2020840
Jan 2021300
Feb 2021500
Mar 2021400
Apr 2021600
May 2021420
Jun 2021400
Jul 20211020
Aug 2021300
Sep 2021700
Oct 2021400
Dec 2021400
Jan 2022610
Feb 2022100
Mar 2022310
Apr 2022410
May 2022900
Jun 2022420
Jul 2022100
Aug 2022520
Sep 2022640
Oct 20221010
Nov 2022900
Dec 20221020
Jan 2023720
Feb 2023200
Apr 2023300
May 2023200
Jun 2023100
Aug 2023600
Sep 2023700
Oct 2023900
Nov 2023100
Dec 2023500
Jan 20244230
Feb 2024700
Mar 2024600
Apr 2024600
Total465660