About: http://webisa.webdatacommons.org/447515042

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	But, although melatonin is a key hormone involved in regulating circadian rhythms and has been reported to have soporific effects, previous studies in older adults have yielded mixed results, [said researcher Jennifer Brault, MD].
http://www.w3.org/ns/prov#wasQuotedFrom	manyyearsyoung.com