About: http://webisa.webdatacommons.org/210545901

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	For many, especially passersby, tourists and others at Ground Zero, post-traumatic symptoms have worsened over time, researchers say.
http://www.w3.org/ns/prov#wasQuotedFrom	firehouse.com