Assertion: melatonin's effect | /r/CapableOf | restore melatonin levels
Facets:
value: in the blood
type: LOCATION
value: to their normal values
type: OTHER
Source sentences:
text: The results showed that the best effects came from a fairly low dose: the 0.3 mg dosage improved sleep efficiency, especially in the middle of the night, and restored melatonin levels in the blood to their normal values.