Assertion: melatonin's efficacy | /r/HasProperty | seen over 6 months
Facets:
value: without cognitive adverse effects
type: OTHER
value: without rebound insomnia
type: OTHER
Source sentences:
text: Effects occurred as quickly as 1 week and efficacy was seen over 6 months, without significant next morning residual effects, rebound insomnia, cognitive adverse effects, and withdrawal.16-18