About: http://webisa.webdatacommons.org/190082949

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	Researchers have observed that the production of neurotransmitters such as acetylcholine, norepinephrine, serotonin, and dopamine often decreases with age (Whitbourne, 1999).
http://www.w3.org/ns/prov#wasQuotedFrom	ablongman.com