Placebo effects, a sum of different factors including non-specific effects, regression to the mean, natural history, and placebo responses, substantially contribute to clinical outcomes in diseases such as Parkinson's disease, depression, and immune function, as well as in acute and chronic pain conditions.10,33 Recent studies on placebo effects implicate the importance of informational context relative to medical treatments, most of which have no direct therapeutic effects on the body.42 One distinct feature of every therapeutic intervention is price, or treatment cost.
from The Journal of Pain https://ift.tt/2O8x8EN
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