Comparison between the complexity of clinical trials 2001-2015

This statistic shows the complexity of clinical trials comparing designs and procedures for the periods 2001-2005 and 2011-2015. Between 2001-2005, there was a mean number of 31 eligibility criteria while between 2011-2015 the number increased to 50.
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Complexity of clinical trials compared in 2001-2005 and 2011-2015
2001-20052011-2015
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