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Papers

Correction

BMJ 1994; 309 doi: https://doi.org/10.1136/bmj.309.6951.399 (Published 06 August 1994) Cite this as: BMJ 1994;309:399

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 2018040
Feb 2018030
Mar 2018020
Apr 2018020
May 2018030
Jun 2018030
Jul 2018010
Aug 2018080
Oct 2018040
Nov 2018060
Dec 2018030
Jan 2019050
Feb 2019040
Mar 2019030
Apr 2019010
May 2019120
Jun 2019030
Jul 2019130
Aug 2019030
Nov 2019010
Dec 2019130
Jan 2020050
Feb 2020040
Mar 2020020
May 20200140
Jun 2020010
Jul 2020030
Aug 2020030
Sep 2020260
Oct 20201290
Nov 20201200
Dec 2020190
Jan 2021090
Feb 2021030
Mar 2021020
Apr 2021070
May 2021040
Jun 2021010
Jul 2021030
Aug 2021020
Sep 2021030
Oct 2021030
Nov 2021030
Dec 2021150
Jan 2022020
Feb 2022010
Mar 2022020
Apr 2022010
May 2022080
Jun 2022050
Jul 2022100
Aug 2022010
Sep 2022200
Oct 20222100
Nov 2022080
Dec 2022060
Jan 2023010
Feb 2023230
May 2023300
Jun 2023010
Sep 2023060
Oct 2023050
Nov 2023030
Dec 20231110
Jan 2024020
Feb 2024330
Mar 2024330
Apr 2024320
Total292920
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