A randomised controlled trial (or randomised control trial; RCT) is a specific type of scientific experiment, and the gold standard for a clinical trial. RCTs are often used to test the efficacy or effectiveness of various types of medical intervention within a patient population. RCTs may also provide an opportunity to gather useful information a...
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http://en.wikipedia.org/wiki/Randomized_controlled_trial
(RCT) Type: Term Definitions: 1. an epidemiologic experiment in which subjects in a population are allocated randomly into groups, called 'experimental' or 'study' and 'control' groups to receive or not receive an experimental therapeutic or preventive regimen, procedure, maneuver, or intervention. ...
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http://www.medilexicon.com/medicaldictionary.php?t=93607
Randomized controlled trial: (RCT) A study in which people are allocated at random (by chance alone) to receive one of several clinical interventions. One of these interventions is the standard of comparison or control. The control may be a standard practice, a placebo ('sugar pill'), or no intervention at all. Someone who takes part in a randomize...
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http://www.medterms.com/script/main/art.asp?articlekey=39532
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