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@carolinefiennes @TimHarford It is better than could have been, randomised at least. But is possible to do properly: http://t.co/KYLXtE5Nft
@carolinefiennes @TimHarford It is better than could have been, randomised at least. But is possible to do properly: http://t.co/KYLXtE5Nft
@SLSingh @Deeetour But this http://t.co/TK5yekFX is considered good-to-strong evidence in favour ??