Assertion: melatonin | /r/ObjectUse | used in europe
Facets:
value: as a contraceptive
type: PURPOSE
Source sentences:
text: In Europe, melatonin at very high doses has been used as a contraceptive.
text: In Europe, melatonin at very high doses has been used as a contraceptive.
text: In Europe, melatonin at very high doses has been used as a contraceptive.