Assertion: placebo's use | /r/HasProperty | controversial
Facets:
value: very
type: DEGREE
value: throughout history
type: TEMPORAL
Source sentences:
text: Use of the placebo effect as a medical treatment has been controversial throughout history, and was common until the mid twentieth century.
text: The therapeutic use of placebo or sham treatments in medicine is very controversial.
text: Using the principles of "evidence-based medicine" (~ scientific research) to research acupuncture is controversial, and has produced different results.