Assertion: hypnosis | /r/CapableOf | produce drop
Facets:
value: in the frequency of the headaches
type: OTHER
Source sentences:
text: To take a clinical example, a study published in the June 2007 Journal of Paediatrics showed that hypnosis produced a significant drop in the severity and duration of headaches in children, and even a drop in the frequency of the headaches themselves - something like 75%.