About: http://webisa.webdatacommons.org/177247797

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	With both tobacco and concussions there are a number of independent ???experiments??? available, as each smoker and NFL player represents a trial, and every non-smoker and individual without a concussion is a control.
http://www.w3.org/ns/prov#wasQuotedFrom	wattsupwiththat.com