About: http://webisa.webdatacommons.org/453583794

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	Purcell says there is no evidence helmets prevent concussion, though they do protect against skull fractures and other head injuries.
http://www.w3.org/ns/prov#wasQuotedFrom	nationalpost.com