"What percentage of the around 3000 treatments included in Clinical Evidence fall into each category:
- 11% Beneficial
- 23% Likely to be beneficial
- 7% Trade off between benefits and harm
- 51% Unknown effectiveness
- 5% Unlikely to be beneficial
- 3% Likely to be ineffective or harmful"
http://clinicalevidence.bmj.com/ceweb/about/knowledge.jsp
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and "Evidence-Based Complementary and Alternative Medicine (eCAM) is an international, peer-reviewed journal that seeks to understand the sources and to encourage rigorous research in this new, yet ancient world of complementary and alternative medicine."
http://www.hindawi.com/journals/ecam/
Evidence-Based Complementary and Alternative Medicine (ECAM) and Pancreatic Cancer: