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Selection bias in cluster trial

BMJ 2008; 336 doi: https://doi.org/10.1136/bmj.39514.402535.80 (Published 13 March 2008) Cite this as: BMJ 2008;336:573

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Jan 2018821
Feb 2018710
Mar 2018510
Apr 2018700
May 2018910
Jun 2018220
Jul 2018830
Aug 20181110
Sep 2018820
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Dec 20181831
Jan 2019830
Feb 20191341
Mar 20191640
Apr 20191310
May 20191521
Jun 20191610
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Aug 20191021
Oct 20191100
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Dec 20191331
Jan 20202354
Feb 20201020
Mar 2020600
May 20203510
Jun 20202030
Jul 20203610
Aug 20201300
Sep 20201731
Oct 20203410
Nov 20202500
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Aug 20213400
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Apr 2022300
May 2022751
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Jul 2022741
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Mar 2023110
Apr 2023600
May 20231032
Jun 20231101
Jul 2023441
Aug 2023400
Sep 20231122
Oct 20231210
Nov 2023721
Dec 20231200
Jan 20243300
Feb 2024921
Mar 2024510
Apr 2024411
Total98311532
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