Would a randomised controlled trial of keys + locks find that keys are not an effective method of opening locks? 
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Replying to @pryorlisa1 reply 0 retweets 0 likes
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Replying to @GidMK
A silly thought, but does make me think about how a drug which looks crappy in a big study might be great in a small sub-population
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Replying to @pryorlisa
Yeh but that's what you've got sub-group analyses for, surely
5:54 PM - 16 Oct 2017
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