<http://webisa.webdatacommons.org/121745286> <http://www.w3.org/ns/prov#wasQuotedFrom> <rttnews.com> . <http://webisa.webdatacommons.org/prov/411102978> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/121745286> . <http://webisa.webdatacommons.org/121745286> <http://www.w3.org/ns/prov#value> "Grey matter is linked to functions such as memory, attention, decision-making and self-regulation.This is the first study to associate premature aging of the brain with chronic cocaine abuse." . <http://webisa.webdatacommons.org/121745286> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> .