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...icine, which employs the [[scientific method]] to test plausible therapies by way of [[Guidelines for human subject research|responsible and ethical]] [[ ...of this bias, especially for diseases that are not expected to get better by themselves such as [[cancer]] or [[HIV/AIDS|HIV infection]], multiple studi

== History == ...ng|thumb|The Compendium of Materia Medica is a pharmaceutical text written by [[Li Shizhen]] (1518–1593 CE) during the [[Ming dynasty]] of China. This