Assertion: melatonin | /r/HasProperty | secreted with robust circadian rhythm
Facets:
value: in most diurnal mammals
type: OTHER
value: in humans
type: OTHER
value: at night
type: TEMPORAL
Source sentences:
text: In humans and most diurnal mammals, melatonin is secreted at night with a robust circadian rhythm and maximum plasma levels that occur around 3 to 4 AM.