Abstract:Systematic reviews of prospective controlled clinical therapy trials are one of the most important sources of information in modern medicine. Besides the systematic search for and statistical pooling of current clinical trial data for a particular type of therapy, systematic reviews also have the task of appraising the quality of trial results. The quality of trial results may be diminished by low internal trial validity, due to systematic error (bias). A high risk of bias may likely cause the reported trial r… Show more
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