@mwheymans Thanks for this - in addition I find the following Royston and Altman paper is essential reading on this subject. https://t.co/kafDi0NwJ8
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RT @GSCollins: @OAlmilaji some papers here on external validation (https://t.co/EdrovSHPw2, https://t.co/u0vaWEAnoq, https://t.co/VVhf8CqVf…
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RT @GSCollins: @OAlmilaji some papers here on external validation (https://t.co/EdrovSHPw2, https://t.co/u0vaWEAnoq, https://t.co/VVhf8CqVf…
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RT @GSCollins: @OAlmilaji some papers here on external validation (https://t.co/EdrovSHPw2, https://t.co/u0vaWEAnoq, https://t.co/VVhf8CqVf…