 | General guidelines for methodologies on research and evaluation of traditional medicine (WHO/EDM, 2000, 80 p.) |
 |  | Annex IV. Definition of Levels of Evidence and Grading of Recommendationa |
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| General guidelines for methodologies on research and evaluation of traditional medicine (WHO/EDM, 2000, 80 p.) |
| | Annex IV. Definition of Levels of Evidence and Grading of Recommendationa |
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