RT @MarionKCampbell: A trial we ran some years ago shows the issue well - it included both centralised computer randomisation & sealed enve…
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A trial we ran some years ago shows the issue well - it included both centralised computer randomisation & sealed envelopes and results showed that randomisation using the envelope system was being actively subverted 5/8 https://t.co/XkJq5GkX0n https:/
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RT @MarionKCampbell: @ADAlthousePhD @apsmunro We experienced subversion of randomisation in one of our trials back in the 90s when we were…
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RT @MarionKCampbell: @ADAlthousePhD @apsmunro We experienced subversion of randomisation in one of our trials back in the 90s when we were…