Clinical Evidence published by the British Medical Journal (2007) analyzed common medical treatments to evaluate which are supported by sufficient reliable evidence.
A reviewed of approximately 2,500 medical treatments showed that:
· 13 percent were found to be beneficial
· 23 percent were likely to be beneficial
· 8 percent were as likely to be harmful as beneficial
· 6 percent were unlikely to be beneficial
· 4 percent were likely to be harmful or ineffective.
· 46 percent were unknown whether they were efficacious or harmful.
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